Merge pull request #51 from dokku/dependabot/github_actions/actions/checkout-4

chore(deps): bump actions/checkout from 3 to 4

Author: josegonzalez

Diff for: .github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
       DOKKU_VERSION: master
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -64,7 +64,7 @@ jobs:
       DOKKU_TAG: v0.19.0
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0