fix: sbroad-cartidge Makefile error in integration tests

Makefile

+include sbroad-cartridge/Makefile 
+
 all: build
 
 IMAGE_NAME = docker-public.binary.picodata.io/sbroad-builder:0.6.0
+ROOT=sbroad-cartridge
 
 bench:
 	make clean
@@ -36,9 +39,6 @@ lint:
 test:
 	cargo test --features mock -vv
 
-test_integration:
-	cd sbroad-cartridge && $(MAKE) test_integration
-
 test_all: test bench_check test_integration
 
 update_ci_image:

sbroad-cartridge/Makefile

@@ -9,14 +9,17 @@ else
 	endif
 endif
 
+ROOT?=.
+TEST_APP=$(ROOT)/test_app
+
 build:
 	cargo build --release
 
 build_integration:
-	cd test_app && cartridge build
+	cartridge build $(TEST_APP)
 
 run_integration:
-	cd test_app && rm -rf tmp/tarantool.log && TARANTOOL_LOG_LEVEL=7 TARANTOOL_LOG=tmp/tarantool.log ./.rocks/bin/luatest --coverage -v test/
+	cd $(TEST_APP) && rm -rf tmp/tarantool.log && TARANTOOL_LOG_LEVEL=7 TARANTOOL_LOG=tmp/tarantool.log ./.rocks/bin/luatest --coverage -v test/ && cd ..
 
 install_release:
 	mkdir -p $(LUADIR)/$(PROJECT_NAME)
@@ -24,4 +27,5 @@ install_release:
 	cp -Rf src/*.lua $(LUADIR)/$(PROJECT_NAME)
 	cp -Rf cartridge $(LUADIR)
 
-test_integration: build_integration run_integration
+test_integration: 
+	$(MAKE) build_integration && $(MAKE) run_integration