ci(workflows): run test and coverage on test folder changes (#78)

Author: ooade

.github/workflows/build-test-code.yml

@@ -3,7 +3,9 @@ name: Test
 on:
   pull_request:
     branches: [main]
-    paths: 'src/**'
+    paths:
+     - 'src/**'
+     - '__tests__/**'
 
 jobs:
   test_pull_request:

.github/workflows/report-coverage.yml

@@ -3,7 +3,9 @@ name: Report Test Coverage
 on:
   push:
     branches: [main]
-    paths: 'src/**'
+    paths:
+     - 'src/**'
+     - '__tests__/**'
 
 jobs:
   report_test_coverage: