Add deployment permissions

Author: cjohnson19

.github/workflows/deploy.yml

@@ -1,4 +1,4 @@
-name: Deploy to SST
+name: Deploy using SST
 
 on:
   push:
@@ -8,6 +8,7 @@ on:
 
 permissions:
   contents: read
+  deployments: write
   pull-requests: write
   issues: write