Merge pull request #446 from exercism/dependabot/github_actions/DavidAnson/markdownlint-cli2-action-19.1.0

.github: Bump DavidAnson/markdownlint-cli2-action from 19.0.0 to 19.1.0

Author: kotp

.github/workflows/markdownlint.yml

@@ -11,4 +11,4 @@ jobs:
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
 
       - name: Run markdownlint
-        uses: DavidAnson/markdownlint-cli2-action@a23dae216ce3fee4db69da41fed90d2a4af801cf
+        uses: DavidAnson/markdownlint-cli2-action@05f32210e84442804257b2a6f20b273450ec8265