refactor!: drop support for spock 1.3

Signed-off-by: Joke de Buhr <joke@xckk.de>

README.adoc

@@ -20,7 +20,7 @@ In consequence Spock then capable of mocking these classes.
 * Removes `final` from classes and methods
 * Automatically attaches java agent
 * Redefines classes via https://bytebuddy.net/[Byte Buddy] transformation.
-* Working with Spock Framework 1.3, 2.0, 2.1, 2.2 and 2.3
+* Working with Spock Framework 2.0, 2.1, 2.2 and 2.3
 
 == Gradle Dependency
 

examples/spock/build.gradle

@@ -3,15 +3,14 @@ plugins {
     id 'groovy'
 }
 
-def spock13 = ['spock13groovy24', 'spock13groovy25']
 def spock2x = [
         'spock20groovy25', 'spock20groovy30',
         'spock21groovy25', 'spock21groovy30',
         'spock22groovy25', 'spock22groovy30', 'spock22groovy40',
         'spock23groovy25', 'spock23groovy30', 'spock23groovy40'
 ]
 
-[*spock13, *spock2x].forEach {
+[*spock2x].forEach {
     sourceSets.create(it) {
         java.srcDirs += sourceSets.main.java.srcDirs
         groovy.srcDirs += sourceSets.test.groovy.srcDirs
@@ -25,20 +24,6 @@ dependencies {
     testImplementation 'org.slf4j:slf4j-simple:2.0.3'
     testImplementation 'org.spockframework:spock-core'
 
-    spock13groovy24Implementation platform('org.codehaus.groovy:groovy-bom:2.4.21')
-    spock13groovy24Implementation platform('org.spockframework:spock-bom:1.3-groovy-2.4')
-    spock13groovy24Implementation project(':spock-mockable')
-    spock13groovy24Implementation 'org.slf4j:slf4j-simple:2.0.2'
-    spock13groovy24Implementation 'org.spockframework:spock-core'
-    spock13groovy24Implementation 'org.objenesis:objenesis:3.3'
-
-    spock13groovy25Implementation platform('org.codehaus.groovy:groovy-bom:2.5.16')
-    spock13groovy25Implementation platform('org.spockframework:spock-bom:1.3-groovy-2.5')
-    spock13groovy25Implementation project(':spock-mockable')
-    spock13groovy25Implementation 'org.slf4j:slf4j-simple:2.0.2'
-    spock13groovy25Implementation 'org.spockframework:spock-core'
-    spock13groovy25Implementation 'org.objenesis:objenesis:2.6'
-
     spock20groovy25Implementation platform('org.codehaus.groovy:groovy-bom:2.5.16')
     spock20groovy25Implementation platform('org.spockframework:spock-bom:2.0-groovy-2.5')
     spock20groovy25Implementation project(':spock-mockable')
@@ -110,17 +95,6 @@ dependencies {
     spock23groovy40Implementation 'org.objenesis:objenesis:3.3'
 }
 
-spock13.forEach { source ->
-    tasks.register("test$source", Test) {
-        group = 'verification'
-
-        testClassesDirs = sourceSets.findByName(source).output.classesDirs
-        classpath = sourceSets.findByName(source).runtimeClasspath
-
-        useJUnit()
-        tasks.findByName('check').dependsOn it
-    }
-}
 spock2x.forEach { source ->
     tasks.register("test$source", Test) {
         group = 'verification'