ci: Bump the actions group with 6 updates

Bumps the actions group with 6 updates:

| Package | From | To |
| --- | --- | --- |
| [actions/checkout](https://github.com/actions/checkout) | `4` | `7` |
| [actions/setup-python](https://github.com/actions/setup-python) | `5` | `7` |
| [actions/upload-artifact](https://github.com/actions/upload-artifact) | `4` | `7` |
| [actions/cache](https://github.com/actions/cache) | `4` | `6` |
| [actions/upload-pages-artifact](https://github.com/actions/upload-pages-artifact) | `3` | `5` |
| [actions/deploy-pages](https://github.com/actions/deploy-pages) | `4` | `5` |


Updates `actions/checkout` from 4 to 7
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v7)

Updates `actions/setup-python` from 5 to 7
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v5...v7)

Updates `actions/upload-artifact` from 4 to 7
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v7)

Updates `actions/cache` from 4 to 6
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v4...v6)

Updates `actions/upload-pages-artifact` from 3 to 5
- [Release notes](https://github.com/actions/upload-pages-artifact/releases)
- [Commits](actions/upload-pages-artifact@v3...v5)

Updates `actions/deploy-pages` from 4 to 5
- [Release notes](https://github.com/actions/deploy-pages/releases)
- [Commits](actions/deploy-pages@v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: actions/setup-python
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: actions/cache
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: actions/upload-pages-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: actions/deploy-pages
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -26,8 +26,8 @@ jobs:
     name: Format, lint and types
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@v7
+      - uses: actions/setup-python@v7
         with:
           python-version: "3.13"
           cache: pip
@@ -41,7 +41,7 @@ jobs:
     name: Build and check links
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Clone the language repository
         run: git clone --depth 1 --branch "$UPSTREAM_BRANCH" "$UPSTREAM" .cache/lambda-discipline
@@ -55,7 +55,7 @@ jobs:
         with:
           workspaces: .cache/lambda-discipline
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v7
         with:
           python-version: "3.13"
           cache: pip
@@ -66,14 +66,14 @@ jobs:
       - name: Build the site
         run: python build.py --no-update
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         with:
           name: site
           path: _site
           include-hidden-files: true
 
       - name: Restore the link checker's cache
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: .lycheecache
           key: lychee-${{ github.sha }}

.github/workflows/deploy.yml

@@ -51,7 +51,7 @@ jobs:
     if: needs.check.outputs.build == 'true'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Clone the language repository
         run: git clone --depth 1 --branch "$UPSTREAM_BRANCH" "$UPSTREAM" .cache/lambda-discipline
@@ -65,7 +65,7 @@ jobs:
         with:
           workspaces: .cache/lambda-discipline
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v7
         with:
           python-version: "3.13"
           cache: pip
@@ -75,7 +75,7 @@ jobs:
       - name: Build the site
         run: python build.py --no-update
 
-      - uses: actions/upload-pages-artifact@v3
+      - uses: actions/upload-pages-artifact@v5
         with:
           path: _site
 
@@ -88,4 +88,4 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
     steps:
       - id: deployment
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@v5