Added calling async api generator test makefile from tests/unit.sh

Author: RossBugginsNHS

scripts/tests/unit.sh

@@ -18,6 +18,9 @@ cd "$(git rev-parse --show-toplevel)"
 # tasks in scripts/test.mk.
 
 # run tests
+
+
+make -C ./src/asyncapigenerator test
 npm ci
 npm run test:unit --workspaces