chore(deps): update davidanson/markdownlint-cli2-action action to v19 in .github/workflows/website.yml (main) (#5214)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/website.yml

@@ -49,7 +49,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
 
       - name: markdown-lint
-        uses: DavidAnson/markdownlint-cli2-action@eb5ca3ab411449c66620fe7f1b3c9e10547144b0 # v18
+        uses: DavidAnson/markdownlint-cli2-action@a23dae216ce3fee4db69da41fed90d2a4af801cf # v19
         with:
           config: .markdownlint.yaml
           globs: 'runatlantis.io/**/*.md'