Minimum Java 11 for all spring LS. Upgrade vscode dependencies.

eclipse-extensions/org.springframework.ide.eclipse.boot.launch.test/.classpath

@@ -7,5 +7,5 @@
 			<attribute name="test" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="output" path="bin"/>
+	<classpathentry kind="output" path="target/classes"/>
 </classpath>

eclipse-extensions/org.springframework.ide.eclipse.boot.launch.test/.project

@@ -20,8 +20,14 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.m2e.core.maven2Builder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
+		<nature>org.eclipse.m2e.core.maven2Nature</nature>
 		<nature>org.eclipse.pde.PluginNature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
 	</natures>

eclipse-extensions/org.springframework.ide.eclipse.boot.launch.test/.settings/org.eclipse.jdt.core.prefs

@@ -4,4 +4,5 @@ org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
 org.eclipse.jdt.core.compiler.compliance=1.8
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.release=disabled
 org.eclipse.jdt.core.compiler.source=1.8