Fix: only run unit tests in test-unit target

Makefile

@@ -365,7 +365,7 @@ test-watch-for-repl: ##@test Watch all Clojure tests and support REPL connection
 		"until [ -f $$SHADOW_OUTPUT_TO ] ; do sleep 1 ; done ; node --require ./test-resources/override.js $$SHADOW_OUTPUT_TO --repl"
 
 test-unit: export SHADOW_OUTPUT_TO := target/unit_test/test.js
-test-unit: export SHADOW_NS_REGEXP := ^(?!tests\.integration-test)(?!tests-im\.contract-test).*-test$$
+test-unit: export SHADOW_NS_REGEXP := ^(?!tests\.integration-test)(?!tests\.contract-test).*-test$$
 test-unit: ##@test Run unit tests
 test-unit: _test-clojure