Upgrade to codecov-action v2 (#95)

v1 no longer works properly, so let's upgrade
See https://github.com/codecov/codecov-action#%EF%B8%8F--deprecation-of-v1

Author: dziemba

.github/workflows/pullrequest.yml

@@ -24,6 +24,6 @@ jobs:
     - name: Build
       run: mvn -B package --file pom.xml -Pcoverage -Dsytle.colors=always --errors
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v1
+      uses: codecov/codecov-action@v2
       with:
         token: ${{ secrets.CODECOV_TOKEN }}

.github/workflows/release.yml

@@ -30,11 +30,11 @@ jobs:
         nexus_username: ${{ secrets.nexus_username }}
         nexus_password: ${{ secrets.nexus_password }}
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v1
+      uses: codecov/codecov-action@v2
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
 #    - name: Release
 #      uses: softprops/action-gh-release@v1
 #      if: startsWith(github.ref, 'refs/tags/')
 #      env:
-#        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+#        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}