fix: ignore playwright dev files in release archive

Assisted-by: ClaudeCode:claude-opus-4-8
Signed-off-by: skjnldsv <skjnldsv@protonmail.com>

Author: skjnldsv

.nextcloudignore

@@ -18,6 +18,7 @@
 /package.json
 /package-lock.json
 /phpDocumentor.sh
+/playwright
 /psalm.xml
 /README.md
 /rector.php