fix: Allow overriding shouldApplyQuota check from child classes

Signed-off-by: Julius Knorr <jus@bitgrid.net>

lib/private/Files/Storage/Wrapper/Quota.php

@@ -207,7 +207,7 @@ private function isPartFile($path) {
  /**
  * Only apply quota for files, not metadata, trash or others
  */
- private function shouldApplyQuota(string $path): bool {
+ protected function shouldApplyQuota(string $path): bool {
  return str_starts_with(ltrim($path, '/'), 'files/');
  }