Update core publish scripts

tgbotapi.behaviour_builder/publish.gradle

@@ -1,5 +1,4 @@
 apply plugin: 'maven-publish'
-apply plugin: 'signing'
 
 task javadocsJar(type: Jar) {
     classifier = 'javadoc'
@@ -62,8 +61,19 @@ publishing {
         }
     }
 }
-
-signing {
-    useGpgCmd()
-    sign publishing.publications
+    
+if (project.hasProperty("signing.gnupg.keyName")) {
+    apply plugin: 'signing'
+    
+    signing {
+        useGpgCmd()
+    
+        sign publishing.publications
+    }
+    
+    task signAll {
+        tasks.withType(Sign).forEach {
+            dependsOn(it)
+        }
+    }
 }

tgbotapi.behaviour_builder/publish.kpsb

@@ -0,0 +1 @@
+{"licenses":[{"id":"Apache-2.0","title":"Apache Software License 2.0","url":"https://github.com/InsanusMokrassar/TelegramBotAPI/blob/master/LICENSE"}],"mavenConfig":{"name":"Telegram Bot API Steps Extensions","description":"This extensions project contains tools for simple interaction with chats","url":"https://insanusmokrassar.github.io/TelegramBotAPI/tgbotapi.extensions.steps","vcsUrl":"https://github.com/insanusmokrassar/TelegramBotAPI.git","developers":[{"id":"InsanusMokrassar","name":"Ovsiannikov Aleksei","eMail":"ovsyannikov.alexey95@gmail.com"}],"repositories":[{"name":"GithubPackages","url":"https://maven.pkg.github.com/InsanusMokrassar/TelegramBotAPI"},{"name":"sonatype","url":"https://oss.sonatype.org/service/local/staging/deploy/maven2/"}],"gpgSigning":{"type":"dev.inmo.kmppscriptbuilder.core.models.GpgSigning.Optional"}}}