Bump DV plugin to 3.19

Author: bigdaz

plugin-test/src/test/groovy/org/gradle/github/dependencygraph/SampleProjectDependencyExtractorTest.groovy

@@ -26,7 +26,7 @@ class SampleProjectDependencyExtractorTest extends BaseExtractorTest {
         def manifestDependencies = manifest.resolved
 
         [   // plugin dependencies
-            "com.gradle:develocity-gradle-plugin:3.18.1",
+            "com.gradle:develocity-gradle-plugin:3.19",
             "com.diffplug.spotless:spotless-plugin-gradle:4.5.1",
             "com.diffplug.durian:durian-core:1.2.0",
         ].forEach {

sample-projects/java-single-project/settings.gradle

@@ -1,4 +1,4 @@
 plugins {
-    id 'com.gradle.develocity' version '3.18.1'
+    id 'com.gradle.develocity' version '3.19'
 }
 rootProject.name = 'java-lib'

settings.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("com.gradle.develocity").version("3.18.1")
+    id("com.gradle.develocity").version("3.19")
     id("com.gradle.common-custom-user-data-gradle-plugin").version("2.0.2")
 }