(misc) fix resource placeholder filtering

Author: Lori3f6

pom.xml

@@ -13,6 +13,7 @@
         <maven.compiler.target>21</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <minecraft.version>1.21.1</minecraft.version>
         <github.package.url>${env.GITHUB_MAVEN_URL}</github.package.url>
     </properties>
 
@@ -39,7 +40,7 @@
         <dependency>
             <groupId>io.papermc.paper</groupId>
             <artifactId>paper-api</artifactId>
-            <version>1.21.1-R0.1-SNAPSHOT</version>
+            <version>${minecraft.version}-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
         <dependency>