ci: add GitHub token permissions for workflows (#1495)

Signed-off-by: Varun Sharma <[email protected]>

Author: varunsh-coder

.github/workflows/bandit.yml

@@ -9,6 +9,9 @@ on:
     branches:
     - main
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest

.github/workflows/cfn-nag.yml

@@ -13,6 +13,9 @@ on:
     branches:
     - main
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest

.github/workflows/minimal-tests.yml

@@ -8,6 +8,9 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   Check:
 

.github/workflows/snyk.yml

@@ -3,6 +3,9 @@ name: Snyk
 on:
   workflow_dispatch
 
+permissions:
+  contents: read
+
 jobs:
   security:
     runs-on: ubuntu-latest

.github/workflows/static-checking.yml

@@ -8,6 +8,9 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+
 jobs:
   Check:
 

.github/workflows/unlabel-assigned-issue.yml

@@ -3,8 +3,14 @@ on:
   issues:
     types:
       - assigned
+permissions:
+  contents: read
+
 jobs:
   unlabel-issue:
+    permissions:
+      issues: write  # for andymckay/labeler to label issues
+      pull-requests: write  # for andymckay/labeler to label PRs
     runs-on: ubuntu-latest
     steps:
       - name: unlabel-issues