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](actions/upload-artifact@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>

Author: dependabot[bot]

.github/workflows/gradle.yml

@@ -113,22 +113,22 @@ jobs:
       run: ./gradlew runClientGameTestWithMods --stacktrace --warning-mode=fail
 
     - name: Upload screenshots
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       if: ${{ success() || failure() }}
       with:
         name: screenshots
         path: build/run/*/screenshots
         compression-level: 0
 
     - name: Upload logs
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       if: ${{ success() || failure() }}
       with:
         name: logs
         path: build/run/*/logs/latest.log
 
     - name: Upload crash reports
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       if: ${{ failure() }}
       with:
         name: crash-reports