fix: upgrade @tiptap/extension-placeholder from 2.0.3 to 2.3.1

Snyk has created this PR to upgrade @tiptap/extension-placeholder from 2.0.3 to 2.3.1.

See this package in npm:
@tiptap/extension-placeholder

See this project in Snyk:
https://app.snyk.io/org/patooworld/project/323db24f-ae7c-4c52-ac63-2087f1308ba0?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -71,7 +71,7 @@
 		"@tiptap/extension-horizontal-rule": "^2.0.4",
 		"@tiptap/extension-image": "^2.0.4",
 		"@tiptap/extension-link": "^2.0.4",
-		"@tiptap/extension-placeholder": "2.0.3",
+		"@tiptap/extension-placeholder": "2.3.1",
 		"@tiptap/extension-task-item": "^2.0.4",
 		"@tiptap/extension-task-list": "^2.0.4",
 		"@tiptap/extension-text-style": "^2.0.4",