Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Author: shivdesh

lambdas/functions/control-plane/src/scale-runners/scale-down.ts

@@ -128,18 +128,18 @@ function runnerMinimumTimeExceeded(runner: RunnerInfo): boolean {
 }
 
 async function deleteGitHubRunner(
-  githubAppClient: Octokit,
+  githubClient: Octokit,
   ec2runner: RunnerInfo,
   ghRunnerId: number,
 ): Promise<{ ghRunnerId: number; status: number; success: boolean }> {
   try {
     const response =
       ec2runner.type === 'Org'
-        ? await githubAppClient.actions.deleteSelfHostedRunnerFromOrg({
+        ? await githubClient.actions.deleteSelfHostedRunnerFromOrg({
             runner_id: ghRunnerId,
             org: ec2runner.owner,
           })
-        : await githubAppClient.actions.deleteSelfHostedRunnerFromRepo({
+        : await githubClient.actions.deleteSelfHostedRunnerFromRepo({
             runner_id: ghRunnerId,
             owner: ec2runner.owner.split('/')[0],
             repo: ec2runner.owner.split('/')[1],