ci: GitHub Actions Runner Cleanup (#21993)

- Only run top issues on zed-industries/zed
- Move Nightly ARM build to BuildJet

.github/workflows/community_update_all_top_ranking_issues.yml

@@ -8,7 +8,7 @@ on:
 jobs:
   update_top_ranking_issues:
     runs-on: ubuntu-latest
-    if: github.repository_owner == 'zed-industries'
+    if: github.repository == 'zed-industries/zed'
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
       - name: Set up uv

.github/workflows/community_update_weekly_top_ranking_issues.yml

@@ -8,7 +8,7 @@ on:
 jobs:
   update_top_ranking_issues:
     runs-on: ubuntu-latest
-    if: github.repository_owner == 'zed-industries'
+    if: github.repository == 'zed-industries/zed'
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
       - name: Set up uv

.github/workflows/release_nightly.yml

@@ -140,7 +140,7 @@ jobs:
     name: Create a Linux *.tar.gz bundle for ARM
     if: github.repository_owner == 'zed-industries'
     runs-on:
-      - hosted-linux-arm-1
+      - buildjet-16vcpu-ubuntu-2204-arm
     needs: tests
     env:
       DIGITALOCEAN_SPACES_ACCESS_KEY: ${{ secrets.DIGITALOCEAN_SPACES_ACCESS_KEY }}