fix(git-node-vote): specify GH API version (#1222)

Author: aduh95

lib/voting_session.js

@@ -74,7 +74,13 @@ export default class VotingSession extends Session {
     const yamlString = await this.req.text(
       `/repos/${this.owner}/${this.repo}/contents/${
         encodeURIComponent(subPath)}?ref=${prInfo.commits.nodes[0].commit.oid}`,
-      { agent: this.req.proxyAgent }
+      {
+        agent: this.req.proxyAgent,
+        headers: {
+          Accept: 'application/vnd.github.raw+json',
+          'X-GitHub-Api-Version': '2026-03-10'
+        }
+      }
     );
     this.cli.stopSpinner('Download complete');