Suppress "resolving dependencies" when --quiet

Update Spring CLI so that the "resolving dependencies" message is
suppressed when `run --quiet` is used.

Fixes gh-8946

spring-boot-cli/src/test/java/org/springframework/boot/cli/command/install/GroovyGrabDependencyResolverTests.java

@@ -81,6 +81,11 @@ public class GroovyGrabDependencyResolverTests {
 				return new String[] { "." };
 			}
 
+			@Override
+			public boolean isQuiet() {
+				return false;
+			}
+
 		};
 		this.resolver = new GroovyGrabDependencyResolver(configuration);
 	}

spring-boot-cli/src/test/java/org/springframework/boot/cli/compiler/grape/AetherGrapeEngineTests.java

@@ -59,7 +59,7 @@ public class AetherGrapeEngineTests {
 		dependencyResolutionContext.addDependencyManagement(
 				new SpringBootDependenciesDependencyManagement());
 		return AetherGrapeEngineFactory.create(this.groovyClassLoader,
-				repositoryConfigurations, dependencyResolutionContext);
+				repositoryConfigurations, dependencyResolutionContext, false);
 	}
 
 	@Test