fix: downgrade @octokit/graphql to version 7.0.2 for compatibility

Signed-off-by: Sebastian Beltran <bjohansebas@gmail.com>

Author: bjohansebas

package.json

@@ -27,7 +27,7 @@
     "@actions/github": "^6.0.1",
     "@hackmd/api": "^2.5.0",
     "@js-temporal/polyfill": "^0.5.1",
-    "@octokit/graphql": "^8.2.2",
+    "@octokit/graphql": "^7.0.2",
     "ejs": "^3.1.10",
     "safe-parse-list": "^0.1.1"
   },