ci: fix some github actions warnings

.github/workflows/e2e-test-results.yml

@@ -1,3 +1,4 @@
+# use separate workflow to support fork repositories and dependabot branches when publishing test results: see https://github.com/EnricoMi/publish-unit-test-result-action#support-fork-repositories-and-dependabot-branches
 name: Test Results
 
 on:
@@ -18,6 +19,7 @@ jobs:
       actions: read
     steps:
       - name: Download and Extract Artifacts
+        # TODO repace with native actions/download-artifact once it supports downloading from another workflow: https://github.com/actions/download-artifact/issues/3
         env:
           GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
         run: |
@@ -37,7 +39,7 @@ jobs:
           commit: ${{ github.event.workflow_run.head_sha }}
           event_file: artifacts/Event File/event.json
           event_name: ${{ github.event.workflow_run.event }}
-          files: "artifacts/**/*.xml"
+          junit_files: "artifacts/**/junit.xml"
           compare_to_earlier_commit: false
           test_changes_limit: 0
           fail_on: "errors"

.github/workflows/go.yml

@@ -90,7 +90,7 @@ jobs:
           path: coverage.out
 
       - name: Upload code coverage information to codecov.io
-        uses: codecov/codecov-action@v2.1.0
+        uses: codecov/codecov-action@v3.1.1
         with:
           file: coverage.out