fix: only request org installation for googlers organization

It seems that we no longer have an installation on a specific
repository, but checking via the still-active organization installation
should be sufficient. This commit attempts this.

Author: devversion

github-actions/post-approval-changes/lib/main.ts

@@ -15,8 +15,7 @@ async function main() {
     // Use the `.github` repo from googlers to get an installation that has access to the googlers
     // user membership.
     const googlersOrgToken = await getAuthTokenFor(ANGULAR_ROBOT, {
-      owner: 'googlers',
-      repo: '.github',
+      org: 'googlers',
     });
     googlersOrgClient = new Octokit({auth: googlersOrgToken});
 

github-actions/post-approval-changes/main.js

@@ -47843,8 +47843,7 @@ async function main() {
   let googlersOrgClient = null;
   try {
     const googlersOrgToken = await getAuthTokenFor(ANGULAR_ROBOT, {
-      owner: "googlers",
-      repo: ".github"
+      org: "googlers"
     });
     googlersOrgClient = new Octokit2({ auth: googlersOrgToken });
     const repoToken = await getAuthTokenFor(ANGULAR_ROBOT, import_github2.context.repo);