added project check for some workflows!

.github/workflows/cache-purge.yml

@@ -9,6 +9,7 @@ on:
 jobs:
   deploy:
     runs-on: ubuntu-latest
+    if: github.repository == 'projectdiscovery/nuclei-templates'
     steps:
       # Wait for 5 minutes
       - name: Wait for 2 minutes

.github/workflows/template-checksum.yml

@@ -11,6 +11,7 @@ on:
 jobs:
   checksum:
     runs-on: ubuntu-latest
+    if: github.repository == 'projectdiscovery/nuclei-templates'
     steps:
       - uses: actions/checkout@v3
         with: 

.github/workflows/template-db-indexer.yml

@@ -11,6 +11,7 @@ on:
 jobs:
   index:
     runs-on: ubuntu-latest
+    if: github.repository == 'projectdiscovery/nuclei-templates'
     steps:
       - name: Set up Go
         uses: actions/setup-go@v4