Potential fix for code scanning alert no. 3: Workflow does not contain permissions (#73)

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: jperals

.github/workflows/visual-regression.yml

@@ -16,6 +16,8 @@ jobs:
   test:
     name: Run Tests
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
     if: github.event.ref != 'refs/heads/main'
     steps:
       - uses: actions/checkout@v4
@@ -46,6 +48,8 @@ jobs:
   update:
     name: Update Snapshots
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
     if: github.event.ref == 'refs/heads/main'
     steps:
       - uses: actions/checkout@v4