chore(deps): update codecov/codecov-action action to v2 (#908)
chore(deps): update codecov/codecov-action action to v2 (#908)

Co-authored-by: Chanseok Oh <4b19c7d703d69cdad83dba8e521398f0174467b1@google.com>
Co-authored-by: gcf-merge-on-green[bot] <6c7a4de7cdf40496888e303ea3f489f3cc742362@users.noreply.github.com>
googleapis/gapic-generator-java,googleapis/gapic-generator-java