update to java 21 and minecraft 1.20.6

Plugin/pom.xml

@@ -33,7 +33,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-shade-plugin</artifactId>
-				<version>2.4.3</version>
+				<version>3.6.0</version>
 				<executions>
 					<execution>
 						<phase>package</phase>
@@ -76,7 +76,7 @@
 		<dependency>
 			<groupId>org.spigotmc</groupId>
 			<artifactId>spigot-api</artifactId>
-			<version>1.18-R0.1-SNAPSHOT</version>
+			<version>1.20.6-R0.1-SNAPSHOT</version>
 			<scope>provided</scope>
 		</dependency>
 		<dependency>

Plugin/src/main/resources/plugin.yml

@@ -4,7 +4,7 @@ description: Gives money for online time
 author: Linus122
 website: "https://www.spigotmc.org/resources/time-is-money.12409/"
 main: de.Linus122.TimeIsMoney.Main
-api-version: 1.13
+api-version: 1.20.6
 
 depend: [Vault]
 softdepend: [Essentials, PlaceholderAPI]

pom.xml

@@ -54,8 +54,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.1</version>
                 <configuration>
-                    <source>1.8</source>
-                    <target>1.8</target>
+                    <source>21</source>
+                    <target>21</target>
                 </configuration>
             </plugin>
             <plugin>