Update to M4 switch to groovy-3 variant, Update gradle to 6.7.1

build.gradle

@@ -15,8 +15,8 @@ repositories {
 
 dependencies {
   // mandatory dependencies for using Spock
-  compile "org.codehaus.groovy:groovy:2.5.13"
-  testCompile platform("org.spockframework:spock-bom:2.0-M3-groovy-2.5")
+  compile "org.codehaus.groovy:groovy:3.0.6"
+  testCompile platform("org.spockframework:spock-bom:2.0-M4-groovy-3.0")
   testCompile "org.spockframework:spock-core"
   testCompile "org.spockframework:spock-junit4"  // you can remove this if your code does not rely on old JUnit 4 rules
 
@@ -27,7 +27,7 @@ dependencies {
 
   // dependencies used by examples in this project
   testRuntime "com.h2database:h2:1.4.197"
-  compile "org.codehaus.groovy:groovy-sql:2.5.13"
+  compile "org.codehaus.groovy:groovy-sql:3.0.6"
 }
 
 // the remaining configuration is specific to this project, and is not required for using Spock

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionSha256Sum=d364b7098b9f2e58579a3603dc0a12a1991353ac58ed339316e6762b21efba44
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.0.1-bin.zip
+distributionSha256Sum=3239b5ed86c3838a37d983ac100573f64c1f3fd8e1eb6c89fa5f9529b5ec091d
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

pom.xml

@@ -11,7 +11,7 @@
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-    <groovy.version>2.5.13</groovy.version>
+    <groovy.version>3.0.6</groovy.version>
   </properties>
 
   <build>
@@ -61,7 +61,7 @@
       <dependency>
         <groupId>org.spockframework</groupId>
         <artifactId>spock-bom</artifactId>
-        <version>2.0-M3-groovy-2.5</version>
+        <version>2.0-M4-groovy-3.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>