fix: remove status/need-triage from maintainer-only issues (#22044)

Co-authored-by: Bryan Morgan <bryanmorgan@google.com>

.github/scripts/sync-maintainer-labels.cjs

@@ -347,6 +347,36 @@ async function run() {
           });
         }
       }
+
+      // Remove status/need-triage from maintainer-only issues since they
+      // don't need community triage. We always attempt removal rather than
+      // checking the (potentially stale) label snapshot, because the
+      // issue-opened-labeler workflow runs concurrently and may add the
+      // label after our snapshot was taken.
+      if (isDryRun) {
+        console.log(
+          `[DRY RUN] Would remove status/need-triage from ${issueKey}`,
+        );
+      } else {
+        try {
+          await octokit.rest.issues.removeLabel({
+            owner: issueInfo.owner,
+            repo: issueInfo.repo,
+            issue_number: issueInfo.number,
+            name: 'status/need-triage',
+          });
+          console.log(`Removed status/need-triage from ${issueKey}`);
+        } catch (removeError) {
+          // 404 means the label wasn't present — that's fine.
+          if (removeError.status === 404) {
+            console.log(
+              `status/need-triage not present on ${issueKey}, skipping.`,
+            );
+          } else {
+            throw removeError;
+          }
+        }
+      }
     } catch (error) {
       console.error(`Error processing label for ${issueKey}: ${error.message}`);
     }