Added the "lib-test" task to the Make file file.

Makefile

@@ -24,6 +24,12 @@ package-build: ## Builds the project locally
 
 package-clean: ## Deletes built SPM artifacts from the package
 	@swift package clean
+lib-test: ## Runs the tests of the library
+	@swift test \
+		--disable-xctest \
+		--enable-code-coverage \
+		--enable-swift-testing \
+		--parallel 
 
 package-outdated: ## Lists the SPM package dependencies that can be updated
 	@swift package update --dry-run