Upgrade gradle plugins (#3342)

- core.gradle.enterprise 3.11.2 -> 3.12.3 (supersedes and closes #3291)
- com.diffplug.spotless 6.11.0 -> 6.13.0 (supersedes and closes #3298)
- com.jfrog.artifactory 4.29.2 -> 4.31.0 (supersedes and closes #3290)

gradle/libs.versions.toml

@@ -39,7 +39,7 @@ testNg = "org.testng:testng:7.5" # since 7.6 JDK8 is unsupported, don't bump
 throwingFunction = "com.pivovarit:throwing-function:1.5.1"
 
 [plugins]
-artifactory = { id = "com.jfrog.artifactory", version = "4.29.2" }
+artifactory = { id = "com.jfrog.artifactory", version = "4.31.0" }
 asciidoctor-convert = { id = "org.asciidoctor.jvm.convert", version.ref = "asciidoctor" }
 asciidoctor-pdf = { id = "org.asciidoctor.jvm.pdf", version.ref = "asciidoctor" }
 bnd = { id = "biz.aQute.bnd.builder", version = "6.3.1" }
@@ -49,5 +49,5 @@ jcstress = { id = "io.github.reyerizo.gradle.jcstress", version = "0.8.14" }
 kotlin = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
 nohttp = { id = "io.spring.nohttp", version = "0.0.10" }
 shadow = { id = "com.github.johnrengelman.shadow", version = "7.1.2" }
-spotless = { id = "com.diffplug.spotless", version = "6.11.0" }
+spotless = { id = "com.diffplug.spotless", version = "6.13.0" }
 testsets = { id = "org.unbroken-dome.test-sets", version = "4.0.0" }

settings.gradle

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 plugins {
-	id "com.gradle.enterprise" version "3.11.2"
+	id "com.gradle.enterprise" version "3.12.3"
 }
 
 rootProject.name = 'reactor'