[NRL-793] Remove branch_name input from update-lambda-perms workflow

Author: mattdean3-nhs

.github/workflows/update-lambda-permissions.yml

@@ -1,5 +1,5 @@
 name: Update Lambda Permissions
-run-name: Updating permissions on ${{ inputs.stack_name }} using ${{ inputs.branch_name }} by ${{ github.actor }}
+run-name: Updating permissions on ${{ inputs.stack_name }} using ${{ github.ref }} by ${{ github.actor }}
 
 on:
   workflow_dispatch:
@@ -15,10 +15,6 @@ on:
         required: true
         type: string
 
-      branch_name:
-        description: Branch to deploy
-        required: true
-
       strict_versioning:
         description: Use strict versioning (recommended)
         required: true