TECH-5070: add global to git config

Author: madelynrr

.github/workflows/declare_schema_build.yml

@@ -38,7 +38,7 @@ jobs:
         id: appraisals
         run: |
           bundle install --jobs=3 --retry=3 --path=${BUNDLE_PATH:-vendor/bundle} --gemfile=${{ matrix.gemfile }}
-          git config user.email "[email protected]"
-          git config user.name "dummy"
+          git config --global user.email "[email protected]"
+          git config --global user.name "dummy"
           bundle exec rake test:prepare_testapp[force]
           bundle exec rake test:all < test_responses.txt