fix(ncu-ci): pass COMMIT_SHA_CHECK to V8 CI

Similar to `node-test-pull-request`, `node-test-commit-v8-linux` also
now requires `COMMIT_SHA_CHECK` to be passed to it.

Refs: nodejs#911

Author: richardlau

lib/ci/run_ci.js

@@ -62,7 +62,8 @@ export class RunPRJob {
       parameter: [
         { name: 'GITHUB_ORG', value: this.owner },
         { name: 'REPO_NAME', value: this.repo },
-        { name: 'GIT_REMOTE_REF', value: `refs/pull/${this.prid}/head` }
+        { name: 'GIT_REMOTE_REF', value: `refs/pull/${this.prid}/head` },
+        { name: 'COMMIT_SHA_CHECK', value: this.certifySafe }
       ]
     }));
     return payload;