chore(deps): update reviewdog/reviewdog to 0.21.0 (#101)

Co-authored-by: review-dog <22892449+review-dog@users.noreply.github.com>

Author: github-actions[bot]

action.yml

@@ -88,7 +88,7 @@ runs:
       env:
         # We may want to allow specifying reviewdog version as
         #  action's input, but let's start with hard coded latest stable version for reviewdog
-        REVIEWDOG_VERSION: v0.20.2
+        REVIEWDOG_VERSION: v0.21.0
         # INPUT_<VARIABLE_NAME> is not available in Composite run steps
         # https://github.community/t/input-variable-name-is-not-available-in-composite-run-steps/127611
         INPUT_GITHUB_TOKEN: ${{ inputs.github_token }}