Update RSocket Sample to use RSocket 1.0.1

Fixes the integration tests from hanging.

Issue gh-8664

samples/boot/hellorsocket/spring-security-samples-boot-hellorsocket.gradle

@@ -9,3 +9,5 @@ dependencies {
 	testCompile project(':spring-security-test')
 	testCompile 'org.springframework.boot:spring-boot-starter-test'
 }
+
+ext['rsocket.version'] = '1.0.1'