fix: use double-quotes to encase strings

Author: Jose Diaz-Gonzalez

action.yml

@@ -1,45 +1,45 @@
 ---
-name: 'Dokku'
-description: 'Official Github Action for deploying apps to a Dokku installation'
-author: 'Dokku'
+name: "Dokku"
+description: "Official Github Action for deploying apps to a Dokku installation"
+author: "Dokku"
 branding:
-  icon: 'upload-cloud'
-  color: 'blue'
+  icon: "upload-cloud"
+  color: "blue"
 inputs:
   branch:
-    description: 'The branch to deploy when pushing to Dokku (default: master)'
+    description: "The branch to deploy when pushing to Dokku (default: master)"
     required: false
-    default: 'master'
+    default: "master"
   ci_branch_name:
-    description: 'The command to run for the action (default: detected from GITHUB_REF)'
+    description: "The command to run for the action (default: detected from GITHUB_REF)"
     required: false
-    default: ''
+    default: ""
   command:
-    description: 'The command to run for the action (default: deploy)'
+    description: "The command to run for the action (default: deploy)"
     required: false
-    default: 'deploy'
+    default: "deploy"
   git_push_flags:
-    description: 'The dokku app\'s git repository url (in SSH format)'
+    description: "The dokku app's git repository url (in SSH format)"
     required: true
   git_remote_url:
-    description: 'A string containing a set of flags to set on push'
+    description: "A string containing a set of flags to set on push"
     required: false
   review_app_name:
-    description: 'The name of the review app to create or destroy'
+    description: "The name of the review app to create or destroy"
     required: false
-    default: ''
+    default: ""
   ssh_host_key:
-    description: 'The results of running `ssh-keyscan -t rsa $HOST`'
+    description: "The results of running `ssh-keyscan -t rsa $HOST`"
     required: false
-    default: ''
+    default: ""
   ssh_private_key:
-    description: 'A private SSH key that has push acces to your Dokku instance'
+    description: "A private SSH key that has push acces to your Dokku instance"
     required: true
 runs:
-  using: 'docker'
-  image: 'Dockerfile'
-  entrypoint: '/bin/dokku-deploy'
-  post-entrypoint: '/bin/dokku-unlock'
+  using: "docker"
+  image: "Dockerfile"
+  entrypoint: "/bin/dokku-deploy"
+  post-entrypoint: "/bin/dokku-unlock"
   post-if: cancelled()
   env:
     BRANCH: ${{ inputs.branch }}