Fix deployment: add write permissions for GITHUB_TOKEN

Author: AritraDey-Dev

.github/workflows/deploy.yml

@@ -5,6 +5,8 @@ on:
   workflow_dispatch:
 jobs:
   build-and-deploy:
+    permissions:
+      contents: write
     runs-on: ubuntu-latest
     steps:
       - name: Checkout 🛎️
@@ -20,3 +22,4 @@ jobs:
         with:
           branch: gh-pages # The branch the action should deploy to.
           folder: build # The folder the action should deploy.
+          clean: true