Bumped codecov/codecov-action to '@v6'.

Author: Paebbels

.github/workflows/PublishCoverageResults.yml

@@ -199,7 +199,7 @@ jobs:
           retention-days: 1
 
       - name: 📊 Publish code coverage at CodeCov
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         id: codecov
         if: inputs.codecov == 'true'
         continue-on-error: true

.github/workflows/PublishTestResults.yml

@@ -144,7 +144,7 @@ jobs:
           reporter: java-junit
 
       - name: 📊 Publish unittest results at CodeCov
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         id: codecov
         if: inputs.codecov == 'true'
         continue-on-error: true