Update actions/upload-artifact digest to b4b15b8

Author: renovate[bot]

.github/workflows/build.yml

@@ -78,15 +78,15 @@ jobs:
           cake-version: tool-manifest
 
       - name: Upload Issues-Report
-        uses: actions/upload-artifact@89ef406dd8d7e03cfd12d9e0a4a378f454709029 # v4
+        uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4
         with:
           if-no-files-found: warn
           name: ${{ matrix.os }} Issues
           path: BuildArtifacts/report.html
 
       - name: Upload Packages
         if: runner.os == 'Windows'
-        uses: actions/upload-artifact@89ef406dd8d7e03cfd12d9e0a4a378f454709029 # v4
+        uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4
         with:
           if-no-files-found: warn
           name: package