ci: prevent certain actions from running on forks

Author: rickstaa

.github/workflows/empty-issues-closer.yaml

@@ -8,6 +8,7 @@ on:
 
 jobs:
   closeEmptyIssuesAndTemplates:
+    if: github.repository == 'anuraghazra/github-readme-stats'
     name: Close empty issues
     runs-on: ubuntu-latest
     steps:

.github/workflows/label-pr.yml

@@ -4,6 +4,7 @@ on:
 
 jobs:
   triage:
+    if: github.repository == 'anuraghazra/github-readme-stats'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/labeler@v4

.github/workflows/stale-theme-pr-closer.yaml

@@ -5,6 +5,7 @@ on:
 
 jobs:
   closeOldThemePrs:
+    if: github.repository == 'anuraghazra/github-readme-stats'
     name: Close stale 'invalid' theme PRs
     runs-on: ubuntu-latest
     strategy:

.github/workflows/top-issues-dashboard.yml

@@ -5,6 +5,7 @@ on:
 
 jobs:
   showAndLabelTopIssues:
+    if: github.repository == 'anuraghazra/github-readme-stats'
     name: Update top issues Dashboard.
     runs-on: ubuntu-latest
     steps: