Bump @github/markdownlint-github from 0.6.3 to 0.7.0 (#3309)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -65,7 +65,7 @@
     "@changesets/cli": "^2.24.1",
     "@github/axe-github": "^0.7.0",
     "@github/browserslist-config": "^1.0.0",
-    "@github/markdownlint-github": "^0.6.0",
+    "@github/markdownlint-github": "^0.7.0",
     "@github/prettier-config": "0.0.6",
     "@playwright/test": "^1.49.1",
     "@primer/css": "21.5.1",