ci: improve permission on workflows

Author: deandreamatias

.github/workflows/base-beta.yaml

@@ -20,12 +20,16 @@ concurrency:
 
 jobs:
   build:
+    permissions:
+      contents: read
     uses: flutter-form-builder-ecosystem/.github/.github/workflows/minimal-quality.yaml@main
     with:
       codecov-name: form_builder_extra_fields
       enable-fix-tests: true
       fvm-flavor: beta
   example:
+    permissions:
+      contents: read
     uses: flutter-form-builder-ecosystem/.github/.github/workflows/build-examples.yaml@main
     with:
       fvm-flavor: beta

.github/workflows/base.yaml

@@ -18,11 +18,15 @@ concurrency:
 
 jobs:
   build:
+    permissions:
+      contents: read
     uses: flutter-form-builder-ecosystem/.github/.github/workflows/minimal-quality.yaml@main
     with:
       codecov-name: form_builder_extra_fields
       enable-fix-tests: true
   example:
+    permissions:
+      contents: read
     uses: flutter-form-builder-ecosystem/.github/.github/workflows/build-examples.yaml@main
 
   deployment:

.github/workflows/pr.yaml

@@ -7,6 +7,8 @@ on:
 jobs:
   validate-pr-title:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     steps:
       - name: PR Conventional Commit Validation
         uses:  ytanikin/PRConventionalCommits@1.3.0

.github/workflows/stale.yaml

@@ -6,6 +6,10 @@ on:
 jobs:
   stale:
     runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+      contents: write
     steps:
       - uses: actions/stale@v10
         with: