Build(deps): Bump actions/upload-artifact from 3.1.3 to 4.0.0

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3.1.3 to 4.0.0.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](a8a3f3ad30...c7d193f32e)

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

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

.github/workflows/assembleFlavors.yml

@@ -30,7 +30,7 @@ jobs:
           echo "org.gradle.jvmargs=-Xmx2g -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError" >> gradle.properties
           ./gradlew assemble${{ matrix.flavor }}
       - name: Archive apk
-        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3.1.3
+        uses: actions/upload-artifact@c7d193f32edcb7bfad88892161225aeda64e9392 # v4.0.0
         if: ${{ always() }}
         with:
           name: Nextcloud-APK

.github/workflows/unit-tests.yml

@@ -30,7 +30,7 @@ jobs:
                     arguments: testGplayDebugUnit
             -   name: Upload test artifacts
                 if: ${{ failure() }}
-                uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32
+                uses: actions/upload-artifact@c7d193f32edcb7bfad88892161225aeda64e9392
                 with:
                     name: test-results
                     path: app/build/reports/tests/testGplayDebugUnitTest/