[CI] Upgrade `codecov` action to v3 (#28818) (#28830)

Co-authored-by: Nemanja Glumac <31325167+nemanjaglumac@users.noreply.github.com>

.github/workflows/backend.yml

@@ -44,7 +44,7 @@ jobs:
     - name: Collect the test coverage
       run: clojure -X:dev:ee:ee-dev:test:cloverage
     - name: Upload coverage to codecov.io
-      uses: codecov/codecov-action@v2
+      uses: codecov/codecov-action@v3
       with:
         files: ./target/coverage/codecov.json
         flags: back-end

.github/workflows/frontend.yml

@@ -90,7 +90,7 @@ jobs:
     - run: yarn run test-unit --coverage --silent
       name: Run frontend unit tests
     - name: Upload coverage to codecov.io
-      uses: codecov/codecov-action@v2
+      uses: codecov/codecov-action@v3
       with:
         files: ./coverage/lcov.info
         flags: front-end