fix: reporting fetch failure as job error and log the error (#2715)

E.g. if GoGitAction Cache had a fetch failure this error did not trigger report jobResult Failure.

Also the error has been not printed until the last message before exit of act.

* adds tests for both corner cases

pkg/runner/testdata/action-cache-v2-fetch-failure-is-job-error/push.yml

@@ -0,0 +1,8 @@
+name: basic
+on: push
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: nektos/test-override@a