Bump gradle to latest. (#524)

Author: nedtwigg

jvm/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

jvm/undertest-junit-vintage/build.gradle

@@ -6,7 +6,7 @@ repositories {
   mavenCentral()
 }
 spotless {
-  enforceCheck false
+  enforceCheck = false
   kotlin {
     target 'src/**/*.kt'
     toggleOffOn()

jvm/undertest-junit5-kotest/build.gradle

@@ -7,7 +7,7 @@ repositories {
   mavenCentral()
 }
 spotless {
-  enforceCheck false
+  enforceCheck = false
   kotlin {
     target 'src/**/*.kt'
     toggleOffOn()

jvm/undertest-junit5/build.gradle

@@ -6,7 +6,7 @@ repositories {
   mavenCentral()
 }
 spotless {
-  enforceCheck false
+  enforceCheck = false
   kotlin {
     target 'src/**/*.kt'
     toggleOffOn()

jvm/undertest-kotest/build.gradle

@@ -6,7 +6,7 @@ repositories {
   mavenCentral()
 }
 spotless {
-  enforceCheck false
+  enforceCheck = false
   kotlin {
     target 'src/**/*.kt'
     toggleOffOn()