chore: update .gitignore to include .vscode and *.cache, and remove .phpunit.cache

Author: bbsnly

.gitignore

@@ -1,8 +1,8 @@
 /vendor
 /.idea
-composer.phar
+/.vscode
 .DS_Store
+*.cache
+composer.phar
 Thumbs.db
-.phpunit.result.cache
-/.vscode
-/.phpunit.cache
+composer.lock