CI: Use an non-shallow repo for sonar

Signed-off-by: Taylor Smock <tsmock@fb.com>

.gitlab-ci.yml

@@ -128,6 +128,7 @@ sonarcloud.io:
     name: sonarcloud.io
     url: https://sonarcloud.io/dashboard?id=mapwithai
   script:
+    - git fetch --unshallow
     - ./gradlew -Dsonar.login=$SONAR_TOKEN sonarqube
   rules:
     - if: '$CI_COMMIT_TAG && $SONAR_TOKEN =~ /[0-9a-z]+/'