Fix ToolchainPlugin

- Change toolchain to get configured immediately instead
  after project evaluation which somehow caused i.e.
  vscode not detect correct project jdk in use.
- Relates spring-projects#1131

buildSrc/src/main/java/org/springframework/shell/gradle/ToolchainPlugin.java

@@ -30,7 +30,7 @@ public void apply(Project project) {
 
 	private void configureToolchain(Project project) {
 		ToolchainExtension toolchain = project.getExtensions().create("toolchain", ToolchainExtension.class, project);
-		project.afterEvaluate((evaluated) -> configure(evaluated, toolchain));
+		configure(project, toolchain);
 	}
 
 	private void configure(Project project, ToolchainExtension toolchain) {