Bump actions/upload-artifact from 6 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 6 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v6...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/assets_artifact_build.yml

@@ -80,13 +80,13 @@ jobs:
         run: zip -r /tmp/partdb_assets.zip public/build/ vendor/
 
       - name: Upload assets artifact
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: Only dependencies and built assets
           path: /tmp/partdb_assets.zip
 
       - name: Upload full artifact
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: Full Part-DB including dependencies and built assets
           path: /tmp/partdb_with_assets.zip

.github/workflows/docker_build.yml

@@ -98,7 +98,7 @@ jobs:
       -
         name: Upload digest
         if: github.event_name != 'pull_request'
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: digests-${{ matrix.platform-slug }}
           path: /tmp/digests/*

.github/workflows/docker_frankenphp.yml

@@ -99,7 +99,7 @@ jobs:
       -
         name: Upload digest
         if: github.event_name != 'pull_request'
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: digests-${{ matrix.platform-slug }}
           path: /tmp/digests/*