fix(ci): add read chmod for library path

Author: Vacxe

Makefile

@@ -12,6 +12,7 @@ install: build
 	sudo mkdir -p $(LIB_FLAT_DIR)
 	sudo cp -f $(BUILD_PATH) $(INSTALL_PATH)
 	sudo cp -f danger-kotlin-library/build/libs/danger-kotlin.jar $(LIB_INSTALL_PATH)/danger-kotlin.jar
+	sudo chmod -R +r $(LIB_INSTALL_PATH)
 
 build:
 	./gradlew build -p danger-plugin-installer