changed .env.example file

.env.example

@@ -1,7 +1,7 @@
 DATABASE_URL="postgres://postgres:postgres@db:5432/job-board-db"
 NEXTAUTH_SECRET="koXrQGB5TFDhiX47swxHW+4KALDX4kAvnQ5RHHvAOIzB"
 NEXTAUTH_URL="http://localhost:3000"
-NEXT_PUBLIC_AWS_S3_REGION=your-aws-region
-NEXT_PUBLIC_AWS_S3_ACCESS_KEY_ID=your-access-ID
-NEXT_PUBLIC_AWS_S3_SECRET_ACCESS_KEY=your-access-key
-NEXT_PUBLIC_AWS_S3_BUCKET_NAME=your-bucket
+AWS_S3_REGION=your-aws-region
+AWS_S3_ACCESS_KEY_ID=your-access-ID
+AWS_S3_SECRET_ACCESS_KEY=your-access-key
+AWS_S3_BUCKET_NAME=your-bucket