chore: update gitignore for PHPUnit10

kenjis · kenjis · commit 54e6c4deb2b1 · 2023-10-21T11:28:26.000+09:00
diff --git a/.gitignore b/.gitignore
@@ -126,5 +126,6 @@ nb-configuration.xml
 /results/
 /phpunit*.xml
 /.phpunit.*.cache
+/.phpunit.cache
 
 /.php-cs-fixer.php
