GitHub actions: limit GITHUB_TOKEN permissions (#1933)

.github/workflows/ci-checks.yml

@@ -3,6 +3,9 @@ name: Checks
 on:
   pull_request:
 
+permissions:
+  contents: read
+
 jobs:
   security:
     name: Security

.github/workflows/ci-oss.yml

@@ -4,6 +4,9 @@ on:
   pull_request:
     types: [opened, synchronize]
 
+permissions:
+  contents: read
+
 jobs:
   test:
     if: github.event.pull_request.head.repo.full_name != github.repository

.github/workflows/ci-saas.yml

@@ -3,6 +3,9 @@ name: CI (SaaS)
 on:
   push:
 
+permissions:
+  contents: read
+
 jobs:
   test_oss:
     name: Test (OSS)

.github/workflows/test.yml

@@ -10,6 +10,9 @@ on:
       GH_TOKEN:
         required: false
 
+permissions:
+  contents: read
+
 jobs:
   test:
     name: Tests (${{ matrix.mode }})