fix(deps): update dependency me.clip:placeholderapi to v2.12.1

Author: renovate[bot]

pom.xml

@@ -144,7 +144,7 @@
         <dependency>
             <groupId>me.clip</groupId>
             <artifactId>placeholderapi</artifactId>
-            <version>2.11.7</version>
+            <version>2.12.1</version>
             <scope>provided</scope>
         </dependency>