tests: don’t run vitest twice

The dashboard-test container already runs test-local which includes
playwright and vitest.

Makefile

@@ -140,9 +140,9 @@ test-local-vitest: node_modules
 .PHONY: test-local
 test-local: test-local-playwright test-local-vitest
 
-.PHONY: test-playwright
+.PHONY: test
 .ONESHELL:
-test-playwright:
+test:
 	. tests/env
 	$(DOCKER_COMPOSE) \
 		--env-file tests/env \
@@ -153,6 +153,3 @@ test-playwright:
 		--force-recreate \
 		--exit-code-from dashboard-test \
 	;
-
-.PHONY: test
-test: test-playwright test-local-vitest