Set git configs on CI

Author: Your Name

.github/workflows/phpunit.yml

@@ -3,6 +3,8 @@ on: push
 jobs:
   phpunit:
     runs-on: ubuntu-latest
+    env:
+      IS_CI_TEST: true
     steps:
       - uses: actions/checkout@v1
       - uses: shivammathur/setup-php@v2

tests/CodeRepository/GitCodeRepositoryTest.php

@@ -39,6 +39,10 @@ private function createGitRepo(): void
         $gitPath = self::LOCAL_GIT_PATH;
         $fs->mkdir($gitPath);
         $fs->dumpFile($gitPath . '/composer.json', '{}');
+        if (getenv('IS_CI_TEST')) {
+            `git config --global user.email "you@example.com"`;
+            `git config --global user.name "Your Name"`;
+        }
         `cd {$gitPath} && git init && git add composer.json && git commit -m "Init"`;
     }