update versions of dependencies

build.gradle

 // --- Plugin definitions ---
 plugins {
-    id 'com.github.ben-manes.versions' version '0.36.0'
+    id 'com.github.ben-manes.versions' version '0.42.0'
     id 'java'
     id 'idea'
     id 'org.jastadd' version "${jastadd_gradle_version}"
@@ -23,13 +23,13 @@ configurations {
 }
 
 dependencies {
-    grammar2uml group: 'de.tudresden.inf.st', name: 'grammar2uml', version: '0.2.4'
+    grammar2uml group: 'de.tudresden.inf.st', name: 'grammar2uml', version: "${grammar2uml_version}"
 
-    relast group: 'org.jastadd', name: 'relast', version: "0.4.0-143"
-    ragconnect group: 'de.tudresden.inf.st', name: 'ragconnect', version: '1.0.0-alpha-214'
+    relast group: 'org.jastadd', name: 'relast', version: "${relast_version}"
+    ragconnect group: 'de.tudresden.inf.st', name: 'ragconnect', version: "${ragconnect_version}"
 
-    implementation group: 'de.tudresden.inf.st', name: 'dumpAst', version: '1.0.4-70'
-    jastadd2 group: 'org.jastadd', name: 'jastadd2', version: '2.3.5-dresden'
+    implementation group: 'de.tudresden.inf.st', name: 'dumpAst', version: "${dumpAst_version}"
+    jastadd2 group: 'org.jastadd', name: 'jastadd2', version: "${jastadd_version}"
 
     implementation group: 'org.fusesource.mqtt-client', name: 'mqtt-client', version: '1.16'
     implementation group: 'org.apache.logging.log4j', name: 'log4j-api', version: "${log4j_version}"
@@ -47,6 +47,7 @@ idea.module.generatedSourceDirs += genSrc
 def relastFiles = ["src/gen/jastadd/MinimalModel.relast", "src/gen/jastadd/RagConnect.relast"]
 
 task grammar2uml(type: JavaExec) {
+    group = 'documentation'
     main = 'de.tudresden.inf.st.jastadd.grammar2uml.compiler.Compiler'
     classpath = configurations.grammar2uml
 
@@ -57,12 +58,12 @@ task grammar2uml(type: JavaExec) {
          ])
 }
 
-// phases: ragConnect -> RelAst -> JastAdd
-// phase: ragConnect
+// phases: RagConnect -> RelAst -> JastAdd
+// phase: RagConnect
 task ragConnect(type: JavaExec) {
-    group = 'Build'
-    main = 'org.jastadd.ragconnect.compiler.Compiler'
+    group = 'build'
     classpath = configurations.ragconnect
+    main = 'org.jastadd.ragconnect.compiler.Compiler'
 
     args([
             '--o=src/gen/jastadd',
@@ -79,9 +80,9 @@ task ragConnect(type: JavaExec) {
 
 // phase: RelAst
 task relastToJastAdd(type: JavaExec) {
-    group = 'Build'
+    group = 'build'
     classpath = configurations.relast
-    mainClass = 'org.jastadd.relast.compiler.Compiler'
+    main = 'org.jastadd.relast.compiler.Compiler'
 
     args([
             "--grammarName=./src/gen/jastadd/model",

gradle.properties

-# suppress inspection "UnusedProperty" for whole file
-systemProp.socksProxyHost=127.0.0.1
-systemProp.socksProxyPort=9999
-jackson_version = 2.13.2
-jackson_yaml_version = 2.13.2
-jupiter_version = 5.8.2
-assertj_version = 3.22.0
-log4j_version = 2.17.2
-protobuf_version = 4.0.0-rc-2
-protobuf_plugin_version = 0.8.18
-jastadd_gradle_version = 1.14.5
+jackson_version = 2.13.3
+log4j_version = 2.18.0
+
+jastadd_gradle_version = 1.15.0
+jastadd_version = 2.3.5-dresden-7
+ragconnect_version = 1.0.0-alpha-214
+relast_version = 0.4.0-143
+grammar2uml_version = 0.2.4
+dumpAst_version = 1.2.0