chore: bump the actions group with 3 updates

Bumps the actions group with 3 updates: [actions/upload-artifact](https://github.com/actions/upload-artifact), [actions/download-artifact](https://github.com/actions/download-artifact) and [softprops/action-gh-release](https://github.com/softprops/action-gh-release).


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

Updates `actions/download-artifact` from 5 to 6
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v5...v6)

Updates `softprops/action-gh-release` from 2.3.3 to 2.4.2
- [Release notes](https://github.com/softprops/action-gh-release/releases)
- [Changelog](https://github.com/softprops/action-gh-release/blob/master/CHANGELOG.md)
- [Commits](softprops/action-gh-release@6cbd405...5be0e66)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: actions/download-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: softprops/action-gh-release
  dependency-version: 2.4.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: actions
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/_docs.yml

@@ -30,7 +30,7 @@ jobs:
         run: rm build/html/.doctrees/environment.pickle
 
       - name: Upload built docs artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: docs
           path: build

.github/workflows/_helm.yml

@@ -53,7 +53,7 @@ jobs:
           done
 
       - name: Upload helm chart values schemas
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: helm-chart-schemas
           path: schemas/*

.github/workflows/_release.yml

@@ -7,7 +7,7 @@ jobs:
 
     steps:
       - name: Download artifacts
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           merge-multiple: true
 
@@ -23,7 +23,7 @@ jobs:
       - name: Create GitHub Release
         # We pin to the SHA, not the tag, for security reasons.
         # https://docs.github.com/en/actions/learn-github-actions/security-hardening-for-github-actions#using-third-party-actions
-        uses: softprops/action-gh-release@6cbd405e2c4e67a21c47fa9e383d020e4e28b836 # v2.3.3
+        uses: softprops/action-gh-release@5be0e66d93ac7ed76da52eca8bb058f665c3a5fe # v2.4.2
         with:
           prerelease: ${{ contains(github.ref_name, 'a') || contains(github.ref_name, 'b') || contains(github.ref_name, 'rc') }}
           files: "*"