use latest codecov uploader (#5845)

.github/workflows/main.yml

@@ -105,11 +105,9 @@ jobs:
           # run tests with loopback only. We need to sudo for unshare, which means we need an absolute path for tox.
           sudo unshare --net -- sh -c "ip link set lo up; $(which tox) -e py"
         if: matrix.os == 'ubuntu-latest'
-      - uses: codecov/codecov-action@a1ed4b322b4b38cb846afb5a0ebfa17086917d27
-        # mirrored below and at https://github.com/mitmproxy/mitmproxy/settings/actions
+      - uses: mhils/better-codecov-action@main
         with:
-          file: ./coverage.xml
-          name: ${{ matrix.os }}
+          arguments: '--file ./coverage.xml --name ${{ matrix.os }}'
 
   build:
     strategy:
@@ -174,11 +172,9 @@ jobs:
         run: npm ci
       - working-directory: ./web
         run: npm test
-      - uses: codecov/codecov-action@a1ed4b322b4b38cb846afb5a0ebfa17086917d27
-        # mirrored above and at https://github.com/mitmproxy/mitmproxy/settings/actions
+      - uses: mhils/better-codecov-action@main
         with:
-          file: ./web/coverage/coverage-final.json
-          name: web
+          arguments: '--file ./web/coverage/coverage-final.json'
 
   docs:
     runs-on: ubuntu-latest