Upgrade to Gradle 5.4.1 (#41750)

* Upgrade to Gradle 5.4.1

https://docs.gradle.org/5.4/release-notes.html

Notable: Support for JDK12 , API for incremental tasks

* Use newer version of checkstyle

* Increase stack size

buildSrc/src/main/groovy/org/elasticsearch/gradle/precommit/PrecommitTasks.groovy

@@ -34,6 +34,9 @@ import org.gradle.api.plugins.quality.Checkstyle
 class PrecommitTasks {
 
     /** Adds a precommit task, which depends on non-test verification tasks. */
+
+    public static final String CHECKSTYLE_VERSION = '8.20'
+
     public static Task create(Project project, boolean includeDependencyLicenses) {
         project.configurations.create("forbiddenApisCliJar")
         project.dependencies {
@@ -213,7 +216,7 @@ class PrecommitTasks {
             configProperties = [
                 suppressions: checkstyleSuppressions
             ]
-            toolVersion = '8.10.1'
+            toolVersion = CHECKSTYLE_VERSION
         }
 
         project.tasks.withType(Checkstyle) { task ->

buildSrc/src/main/resources/minimumGradleVersion

@@ -1 +1 @@
-5.3
+5.4.1

gradle.properties

@@ -1,3 +1,3 @@
 org.gradle.daemon=true
-org.gradle.jvmargs=-Xmx2g -XX:+HeapDumpOnOutOfMemoryError
+org.gradle.jvmargs=-Xmx2g -XX:+HeapDumpOnOutOfMemoryError -Xss2m
 options.forkOptions.memoryMaximumSize=2g

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionSha256Sum=f4d820c2a9685710eba5b92f10e0e4fb20e0d6c0dd1f46971e658160f25e7147
+distributionSha256Sum=14cd15fc8cc8705bd69dcfa3c8fefb27eb7027f5de4b47a8b279218f76895a91