Revert "ci: separate slather step (getsentry#5719)"

This reverts commit 438caec.

Author: philipsawyerdd

.github/workflows/test.yml

@@ -272,9 +272,6 @@ jobs:
           path: |
             ~/Library/Logs/DiagnosticReports/**
 
-      - name: Gather code coverage information via slather
-        run: slather coverage --configuration TestCI --scheme Sentry
-
       # We can upload all coverage reports, because codecov merges them.
       # See https://docs.codecov.io/docs/merging-reports
       # Checkout .codecov.yml to see the config of Codecov

scripts/sentry-xcodebuild.sh

@@ -167,5 +167,6 @@ if [ $RUN_TEST_WITHOUT_BUILDING == true ]; then
         -destination "$DESTINATION" \
         test-without-building 2>&1 |
         tee raw-test-output.log |
-        xcbeautify --report junit
+        xcbeautify --report junit &&
+        slather coverage --configuration "$CONFIGURATION" --scheme "$TEST_SCHEME"
 fi