Bump codecov/codecov-action from 2.1.0 to 3 (#263)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/maven.yml

@@ -31,6 +31,6 @@ jobs:
         run: mvn -Penable-jacoco clean verify -B -V -ntp
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v2.1.0
+        uses: codecov/codecov-action@v3
         with:
           file: '*jacoco.xml'