Add test-tia composer script; gitignore .fastunit-cache

Author: TomasVotruba

.gitignore

@@ -11,6 +11,9 @@ composer.lock
 # since PHPUnit 10
 .phpunit.cache
 
+# fast-unit test impact analysis cache
+/.fastunit-cache
+
 # scoped & downgraded version
 php-scoper.phar
 box.phar

composer.json

@@ -107,6 +107,7 @@
             "@test"
         ],
         "test": "vendor/bin/fastunit tests rules-tests utils/phpstan/tests",
+        "test-tia": "vendor/bin/fastunit -tia tests rules-tests utils/phpstan/tests",
         "check-cs": "vendor/bin/ecs check --ansi",
         "fix-cs": "vendor/bin/ecs check --fix --ansi",
         "phpstan": "vendor/bin/phpstan analyse --ansi --memory-limit=512M",