PRODSEC-3611 fix GHA parsing (#1776)

Author: sfc-gh-jfan

.github/workflows/snyk-issue.yml

@@ -4,6 +4,11 @@ on:
   schedule:
     - cron: '* */12 * * *'
 
+permissions:
+  contents: read
+  issues: write
+  pull-requests: write
+
 concurrency: snyk-issue
 
 jobs:

.github/workflows/snyk-pr.yml

@@ -3,6 +3,12 @@ on:
   pull_request:
     branches:
       - main
+
+permissions:
+  contents: read
+  issues: write
+  pull-requests: write
+
 jobs:
   snyk:
     runs-on: ubuntu-latest