build: update maven plugins

- dokka-maven-plugin: deleted
- maven-gpg-plugin: 1.5 -> 3.0.1
- maven-javadoc-plugin: 3.3.2 -> 3.5.0

Author: Pakisan

pom.xml

@@ -159,7 +159,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.3.2</version>
+                <version>3.5.0</version>
                 <executions>
                     <execution>
                         <id>attach-javadocs</id>
@@ -245,7 +245,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-gpg-plugin</artifactId>
-                <version>1.5</version>
+                <version>3.0.1</version>
                 <executions>
                     <execution>
                         <id>sign-artifacts</id>
@@ -256,32 +256,6 @@
                     </execution>
                 </executions>
             </plugin>
-            <!-- Generates Javadoc from kotlin code -->
-            <plugin>
-                <groupId>org.jetbrains.dokka</groupId>
-                <artifactId>dokka-maven-plugin</artifactId>
-                <version>${dokka.version}</version>
-                <executions>
-                    <execution>
-<!--                        <phase>pre-site</phase>-->
-                        <phase>compile</phase>
-                        <goals>
-                            <goal>dokka</goal>
-                            <goal>javadoc</goal>
-                            <goal>javadocJar</goal>
-                        </goals>
-                    </execution>
-                </executions>
-                <configuration>
-                    <dokkaPlugins>
-                        <plugin>
-                            <groupId>org.jetbrains.dokka</groupId>
-                            <artifactId>kotlin-as-java-plugin</artifactId>
-                            <version>${dokka.version}</version>
-                        </plugin>
-                    </dokkaPlugins>
-                </configuration>
-            </plugin>
         </plugins>
     </build>