fix: address workflow permissions warning

Author: cesarenaldi

.github/workflows/ci.yml

@@ -4,6 +4,9 @@ on:
   push:
     branches: [main]
 
+permissions:
+  contents: read
+
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
   cancel-in-progress: true

.github/workflows/on-demand.yml

@@ -5,6 +5,9 @@ on:
     types: [on-demand-test]
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 concurrency:
   group: ${{ github.workflow }}-tests-on-demand
   cancel-in-progress: true

.github/workflows/pull-request.yml

@@ -4,6 +4,9 @@ on:
   pull_request:
     branches: [main]
 
+permissions:
+  contents: read
+
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
   cancel-in-progress: true

.github/workflows/verify.yml

@@ -7,6 +7,9 @@ on:
         required: false
         default: false
 
+permissions:
+  contents: read
+
 jobs:
   lint:
     name: Lint