meta: add missing entry to exclude directive in .nycrc.yml

.nycrc.yml

@@ -13,6 +13,7 @@ include:
 exclude:
   - 'src/**/*.spec.*'
   - 'src/**/*.mock.*'
+  - 'src/**/test/**'
   - 'src/main/entities/**'
 watermarks:
   statements: [80, 95]