Revert "Temporarily disable tests failing due to host lower-casing in Framework."

This reverts commit ce69db2.

Author: OlgaMaciaszek

spring-cloud-contract-stub-runner/src/test/groovy/org/springframework/cloud/contract/stubrunner/spring/cloud/StubRunnerSpringCloudAutoConfigurationSpec.groovy

@@ -19,7 +19,6 @@ package org.springframework.cloud.contract.stubrunner.spring.cloud
 import org.junit.jupiter.api.AfterAll
 import org.junit.jupiter.api.BeforeAll
 import org.junit.jupiter.api.BeforeEach
-import org.junit.jupiter.api.Disabled
 import org.junit.jupiter.api.Test
 
 import org.springframework.beans.factory.annotation.Autowired
@@ -52,7 +51,6 @@ import org.springframework.web.client.RestTemplate
 		stubsMode = StubRunnerProperties.StubsMode.REMOTE,
 		repositoryRoot = "classpath:m2repo/repository/")
 // end::autoconfigure[]
-@Disabled
 class StubRunnerSpringCloudAutoConfigurationSpec {
 
 	@Autowired

tests/spring-cloud-contract-stub-runner-boot-zookeeper/src/test/groovy/org/springframework/cloud/contract/stubrunner/spring/cloud/zookeeper/StubRunnerSpringCloudZookeeperAutoConfigurationSpec.groovy

@@ -19,7 +19,6 @@ package org.springframework.cloud.contract.stubrunner.spring.cloud.zookeeper
 import org.apache.curator.test.TestingServer
 import org.junit.jupiter.api.AfterAll
 import org.junit.jupiter.api.BeforeAll
-import org.junit.jupiter.api.Disabled
 import org.junit.jupiter.api.Test
 
 import org.springframework.beans.factory.annotation.Autowired
@@ -46,7 +45,6 @@ import org.springframework.web.client.RestTemplate
 @AutoConfigureStubRunner(ids = ["org.springframework.cloud.contract.verifier.stubs:loanIssuance",
  "org.springframework.cloud.contract.verifier.stubs:fraudDetectionServer",
  "org.springframework.cloud.contract.verifier.stubs:bootService"] , repositoryRoot = "classpath:m2repo/repository/" , stubsMode = StubRunnerProperties.StubsMode.REMOTE )
-@Disabled
 class StubRunnerSpringCloudZookeeperAutoConfigurationSpec {
 
 	@Autowired