Merge PR #6160 from @frack113 - Restrict PR-creating workflows to SigmaHQ org only

chore: update recurring workflows to only run on SigmaHQ

Author: frack113

.github/workflows/pr-labeler.yml

@@ -7,6 +7,7 @@ name: PR Labeler Workflow
 
 jobs:
   triage:
+    if: github.repository_owner == 'SigmaHQ'
     permissions:
       contents: read
       pull-requests: write

.github/workflows/ref-archiver.yml

@@ -12,6 +12,7 @@ on:
 
 jobs:
   archive:
+    if: github.repository_owner == 'SigmaHQ'
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v5

.github/workflows/release.yml

@@ -8,6 +8,7 @@ name: Create Release
 jobs:
   build:
     name: Create Release
+    if: github.repository_owner == 'SigmaHQ'
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code

.github/workflows/sigma-rule-deprecated.yml

@@ -12,6 +12,7 @@ on:
 
 jobs:
   pull-master:
+    if: github.repository_owner == 'SigmaHQ'
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v5

.github/workflows/update-heatmap.yml

@@ -7,6 +7,7 @@ on:
 
 jobs:
   generate-heatmap:
+    if: github.repository_owner == 'SigmaHQ'
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repository