build(deps): bump @actions/github from 6.0.1 to 7.0.0 (#537)

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

Author: dependabot[bot]

package-lock.json

@@ -35,7 +35,7 @@
   "homepage": "https://github.com/slackapi/slack-github-action#readme",
   "dependencies": {
     "@actions/core": "^2.0.1",
-    "@actions/github": "^6.0.1",
+    "@actions/github": "^7.0.0",
     "@slack/logger": "^4.0.0",
     "@slack/web-api": "^7.13.0",
     "axios": "^1.13.2",