NRL-817 Fix permissions cache paths

Author: axelkrastek1-nhs

.github/workflows/persistent-environment.yml

@@ -138,7 +138,7 @@ jobs:
         uses: actions/cache/restore@v4
         with:
           key: ${{ github.run_id }}-nrlf-permissions
-          path: dist/nrlf_permissions
+          path: dist/nrlf_permissions.zip
           fail-on-cache-miss: true
 
       - name: Terraform Init
@@ -196,7 +196,7 @@ jobs:
         uses: actions/cache/restore@v4
         with:
           key: ${{ github.run_id }}-nrlf-permissions
-          path: dist/nrlf_permissions
+          path: dist/nrlf_permissions.zip
           fail-on-cache-miss: true
 
       - name: Configure Management Credentials

.github/workflows/pr-env-deploy.yml

@@ -155,7 +155,7 @@ jobs:
         uses: actions/cache/restore@v4
         with:
           key: ${{ github.run_id }}-nrlf-permissions
-          path: dist/nrlf_permissions
+          path: dist/nrlf_permissions.zip
           fail-on-cache-miss: true
 
       - name: Retrieve Server Certificates