Moved to v4 cache

Author: Thomas Luijken

.github/workflows/BUILD_TEST_DSTV_NET.yml

@@ -22,7 +22,7 @@ jobs:
           fetch-depth: 0
 
       - name: Cache SonarCloud packages
-        uses: actions/cache@v1
+        uses: actions/cache@v4
         with:
           path: ~\sonar\cache
           key: ${{ runner.os }}-sonar