Feat: ユーザーのアイコン/バナーの変更可否をロールで設定可能に (#14078)

* feat: implement role policy "canUpdateBioMedia"

* docs(changelog): update changelog

* docs(changelog): update changelog

* chore: regenerate misskey-js type definitions

* chore: Apply suggestion from code review

Co-authored-by: anatawa12 <anatawa12@icloud.com>

* chore: fix unnecessarily strict inequality check

* chore: policies should be gotten only once

---------

Co-authored-by: anatawa12 <anatawa12@icloud.com>

packages/backend/src/models/json-schema/role.ts

@@ -228,6 +228,10 @@ export const packedRolePoliciesSchema = {
 			type: 'boolean',
 			optional: false, nullable: false,
 		},
+		canUpdateBioMedia: {
+			type: 'boolean',
+			optional: false, nullable: false,
+		},
 		pinLimit: {
 			type: 'integer',
 			optional: false, nullable: false,