[CI] Run auto-update script only under otel org (#1822)

Co-authored-by: Trask Stalnaker <trask.stalnaker@gmail.com>

Author: chalin

.github/workflows/auto-update-spec-repo-links.yml

@@ -8,6 +8,7 @@ on:
 jobs:
   check-versions:
     runs-on: ubuntu-latest
+    if: github.repository_owner == 'open-telemetry'
     outputs:
       current-version: ${{ steps.check-versions.outputs.current-version }}
       latest-version: ${{ steps.check-versions.outputs.latest-version }}