Disable 'persist-credentials' for 'actions/checkout' (#221)

Author: emonti-ltc

.github/workflows/docker-deploy-dev.yml

@@ -13,6 +13,8 @@ jobs:
 
       - name: Check out the repo
         uses: actions/checkout@v2
+        with:
+          persist-credentials: false
 
       - name: Login to DockerHub
         uses: docker/login-action@v1

.github/workflows/docker-tests.yml

@@ -17,6 +17,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
+        with:
+          persist-credentials: false
 
       - name: Install Platform
         run: |