Update publish.yml remove extra quotation mark

Author: AkanshuS

.github/workflows/publish.yml

@@ -48,7 +48,7 @@ jobs:
           echo "DB_NAME=test_db" >> $GITHUB_ENV
           echo "SECRET_KEY=$(openssl rand -base64 32)" >> $GITHUB_ENV
           echo "BASE_URL=http://localhost:8000" >> $GITHUB_ENV
-          echo "RESEND_API_KEY"=$(openssl rand -base64 32)" >> $GITHUB_ENV
+          echo "RESEND_API_KEY=$(openssl rand -base64 32)" >> $GITHUB_ENV
         
       - name: Verify environment variables for quarto
         run: |