simplify

Author: staabm

Makefile

@@ -167,7 +167,7 @@ composer-dependency-analyser:
 
 .PHONY: infection
 infection:
-	git clone https://github.com/phpstan/build-infection.git || true
+	git -C build-infection pull || git clone https://github.com/phpstan/build-infection.git
 	git -C build-infection fetch origin && git -C build-infection reset --hard origin/1.x
 	composer install --working-dir build-infection --no-interaction --no-progress
 	php build-infection/bin/infection-config.php --source-directory='build/PHPStan/Build'> tmp/infection.json5