build: add mock goal

Makefile

@@ -320,6 +320,13 @@ doc-command: ## Generate markdown documentation for the command
 	  -w /usr/src/docs \
 	  ${DOCKER_IMAGE_MARKDOWNLINT} -f $$OUT_FOLDER
 
+## Mock:
+.PHONY: mock
+mock: ## Generate all the mocks (for tests)
+	@echo "${COLOR_CYAN} 🧱 Generating all the mocks${COLOR_RESET}"
+	@go install github.com/golang/mock/mockgen@v1.6.0
+	@mockgen -source=x/logic/testutil/expected_keepers.go -package testutil -destination x/logic/testutil/expected_keepers_mocks.go
+
 ## Release:
 .PHONY: release-assets
 release-assets: release-binary-all release-checksums ## Generate release assets