ci: explicit permissions to actions (#300)

revoke pull_request_target

Author: doublethink

.github/workflows/ci.yml

@@ -7,6 +7,9 @@ on:
   pull_request:
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   test:
     name: Test / OS ${{ matrix.os }} / Python ${{ matrix.python-version }}

.github/workflows/conventional-commits.yml

@@ -6,7 +6,7 @@ on:
       - main
       - release/*
 
-  pull_request_target:
+  pull_request:
     branches:
       - main
       - release/*
@@ -16,6 +16,9 @@ on:
       - reopened
       - ready_for_review
 
+permissions:
+  contents: read
+
 jobs:
   check-conventional-commits:
     runs-on: ubuntu-latest
@@ -26,7 +29,7 @@ jobs:
           sparse-checkout: |
             .github
 
-      - if: ${{ github.event_name == 'pull_request_target' }}
+      - if: ${{ github.event_name == 'pull_request' }}
         run: |
           set -ex
 

.github/workflows/stale.yml

@@ -4,6 +4,11 @@ on:
   schedule:
     - cron: '0 0 * * *'
 
+permissions:
+  issues: write
+  pull-requests: write
+  contents: read
+
 jobs:
   mark_stale:
     name: Mark issues and PRs as Stale