[CI] Disable some workflows in forks (#18038)

And also disable aws-stop in sycl-rel nightly if aws-start was skipped.

Author: KornevNikita

.github/workflows/bandit.yml

@@ -11,6 +11,7 @@ permissions:
 
 jobs:
   bandit:
+    if: github.repository == 'intel/llvm'
     name: Bandit
     runs-on: ubuntu-latest
     permissions:

.github/workflows/sycl-issues-ping-assignee.yml

@@ -18,6 +18,7 @@ permissions: read-all
 
 jobs:
   run:
+    if: github.repository == 'intel/llvm'
     permissions:
       issues: write 
     runs-on: ubuntu-latest

.github/workflows/sycl-rel-nightly.yml

@@ -167,7 +167,7 @@ jobs:
 
   cuda-aws-stop:
     needs: [cuda-aws-start, cuda-run-tests]
-    if: always()
+    if: always() && ${{ needs.cuda-aws-start.result != 'skipped' }}
     uses: ./.github/workflows/sycl-aws.yml
     secrets: inherit
     with:

.github/workflows/sycl-stale-issues.yml

@@ -8,6 +8,7 @@ permissions: read-all
 
 jobs:
   close-issues:
+    if: github.repository == 'intel/llvm'
     permissions:
       issues: write  # for actions/stale to close stale issues
       pull-requests: write  # for actions/stale to close stale PRs