Update every GitHub Action to its latest major

All of them targeted Node 20, which the runners now force onto Node 24.
Two nested ones came along with their parents: actions/upload-artifact
inside upload-pages-artifact, and actions/github-script inside
codecov-action.

setup-uv v10 disables the cache under enable-cache: auto for release,
workflow_run and pull_request_target. Every job that caches passes
enable-cache: true explicitly, so none of them lose it.

.github/workflows/build-docs.yml

@@ -17,13 +17,13 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: astral-sh/setup-uv@v9.0.0
+      - uses: actions/checkout@v7
+      - uses: astral-sh/setup-uv@v10.0.1
       - run: uv sync --group dev
       - run: uv run zensical build
-      - uses: actions/configure-pages@v5
+      - uses: actions/configure-pages@v6
         if: github.event_name == 'push'
-      - uses: actions/upload-pages-artifact@v3
+      - uses: actions/upload-pages-artifact@v5
         if: github.event_name == 'push'
         with:
           path: ./site
@@ -36,4 +36,4 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
     steps:
       - id: deployment
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@v5

.github/workflows/build-publish-slim.yml

@@ -8,12 +8,12 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: astral-sh/setup-uv@v9.0.0
+      - uses: actions/checkout@v7
+      - uses: astral-sh/setup-uv@v10.0.1
         with:
           enable-cache: true
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v7
         with:
           python-version-file: "pyproject.toml"
       - name: Build haiku.rag-slim

.github/workflows/build-publish.yml

@@ -11,12 +11,12 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ github.event_name == 'workflow_dispatch' || github.event.workflow_run.conclusion == 'success' }}
     steps:
-      - uses: actions/checkout@v4
-      - uses: astral-sh/setup-uv@v9.0.0
+      - uses: actions/checkout@v7
+      - uses: astral-sh/setup-uv@v10.0.1
         with:
           enable-cache: true
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v7
         with:
           python-version-file: "pyproject.toml"
       - name: Build haiku.rag

.github/workflows/docker-publish-slim.yml

@@ -25,13 +25,13 @@ jobs:
           docker-images: true
           swap-storage: true
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Log in to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -44,7 +44,7 @@ jobs:
           echo "version=$VERSION" >> $GITHUB_OUTPUT
 
       - name: Build and push Docker slim image
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           file: docker/Dockerfile.slim

.github/workflows/publish-mcp.yml

@@ -16,7 +16,7 @@ jobs:
     steps:
       - uses: actions/checkout@v7
       - name: Set up Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@v7
         with:
           python-version: '3.12'
       - name: Generate server.json from template

.github/workflows/test.yml

@@ -10,12 +10,12 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: astral-sh/setup-uv@v9.0.0
+      - uses: actions/checkout@v7
+      - uses: astral-sh/setup-uv@v10.0.1
         with:
           enable-cache: true
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v7
         with:
           python-version-file: ".python-version"
       - name: Install dependencies
@@ -28,12 +28,12 @@ jobs:
   lint-frontend:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: pnpm/action-setup@v4
+      - uses: actions/checkout@v7
+      - uses: pnpm/action-setup@v6
         with:
           version: 10
       - name: Set up Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v7
         with:
           node-version: "22"
           cache: "pnpm"
@@ -53,8 +53,8 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
         python: ["3.13", "3.14"]
     steps:
-      - uses: actions/checkout@v4
-      - uses: astral-sh/setup-uv@v9.0.0
+      - uses: actions/checkout@v7
+      - uses: astral-sh/setup-uv@v10.0.1
       # --noconftest: tests/conftest.py imports the project's dependencies,
       # which this job deliberately does not install. test_uri.py is stdlib-only.
       - name: Test platform URI paths
@@ -70,19 +70,19 @@ jobs:
     env:
       HF_TOKEN: ${{ secrets.HF_TOKEN }}
     steps:
-      - uses: actions/checkout@v4
-      - uses: astral-sh/setup-uv@v9.0.0
+      - uses: actions/checkout@v7
+      - uses: astral-sh/setup-uv@v10.0.1
         with:
           enable-cache: true
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v7
         with:
           python-version-file: ".python-version"
       - name: Install dependencies
         run: uv sync --all-extras
       - name: Cache HuggingFace models
         id: hf-cache
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: ~/.cache/huggingface
           key: huggingface-${{ runner.os }}-test-models-v2
@@ -98,7 +98,7 @@ jobs:
           TRANSFORMERS_OFFLINE: ${{ steps.hf-cache.outputs.cache-hit == 'true' && '1' || '0' }}
         run: uv run pytest -m "not integration" --cov --cov-report=xml --cov-report=term-missing:skip-covered
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v7
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: ./coverage.xml