fix: Update plugin.yml api version (#319)

Author: leviem1

src/main/resources/plugin.yml

@@ -1,7 +1,7 @@
 main: ${PACKAGE}.${NAME}
 name: ${NAME}
 version: "${VERSION}"
-api-version: "1.21.1"
+api-version: "1.21.11"
 author: AUTHOR
 description: DESCRIPTION
 commands: