build(deps): Bump @octokit/graphql-schema from 12.0.0 to 12.8.1

Bumps [@octokit/graphql-schema](https://github.com/octokit/graphql-schema) from 12.0.0 to 12.8.1.
- [Release notes](https://github.com/octokit/graphql-schema/releases)
- [Commits](https://github.com/octokit/graphql-schema/compare/v12.0.0...v12.8.1)

---
updated-dependencies:
- dependency-name: "@octokit/graphql-schema"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -28,7 +28,7 @@
   "dependencies": {
     "@actions/core": "^1.9.1",
     "@actions/github": "^5.0.3",
-    "@octokit/graphql-schema": "^12.0.0"
+    "@octokit/graphql-schema": "^12.8.1"
   },
   "devDependencies": {
     "@types/jest": "^27.4.1",

yarn.lock

@@ -1156,10 +1156,10 @@
     is-plain-object "^5.0.0"
     universal-user-agent "^6.0.0"
 
-"@octokit/graphql-schema@^12.0.0":
-  version "12.0.0"
-  resolved "https://registry.yarnpkg.com/@octokit/graphql-schema/-/graphql-schema-12.0.0.tgz#0c7965ce815ed5eb0ffe415138f52713fa3b43ae"
-  integrity sha512-/qw0J/oj/d4G37ynilBeYWQ+BZVqlaDkqHkdOLg7nKa8l85SemNSzNLyr1CcqBjmiu3ME8MqyLjU9mdts+IeYg==
+"@octokit/graphql-schema@^12.8.1":
+  version "12.8.1"
+  resolved "https://registry.yarnpkg.com/@octokit/graphql-schema/-/graphql-schema-12.8.1.tgz#12ae84c0c229ec60364332bdc6d6a942c801a810"
+  integrity sha512-C5xLinw8tMGBoqi8r1TYVG68/JJg+C4mxh34J9e2r95kH+ja51xjzZtWMzOdjgzUDtrp3P+mCLFgD13N/93Iqw==
   dependencies:
     graphql "^16.0.0"
     graphql-tag "^2.10.3"