Update groupId io.projectreactor.addons -> io.projectreactor

Fixes gh-4377

core/spring-security-core.gradle

@@ -27,7 +27,7 @@ dependencies {
 
 	testCompile powerMockDependencies
 	testCompile 'commons-collections:commons-collections'
-	testCompile 'io.projectreactor.addons:reactor-test'
+	testCompile 'io.projectreactor:reactor-test'
 	testCompile 'org.skyscreamer:jsonassert'
 	testCompile 'org.slf4j:jcl-over-slf4j'
 	testCompile 'org.springframework:spring-test'

samples/javaconfig/hellowebflux/spring-security-samples-javaconfig-hellowebflux.gradle

@@ -11,7 +11,7 @@ dependencies {
 	compile 'org.springframework:spring-webflux'
 
 	testCompile project(':spring-security-test')
-	testCompile 'io.projectreactor.addons:reactor-test'
+	testCompile 'io.projectreactor:reactor-test'
 	testCompile 'org.skyscreamer:jsonassert'
 	testCompile 'org.springframework:spring-test'
 }

samples/javaconfig/hellowebfluxfn/spring-security-samples-javaconfig-hellowebfluxfn.gradle

@@ -11,7 +11,7 @@ dependencies {
 	compile 'org.springframework:spring-webflux'
 
 	testCompile project(':spring-security-test')
-	testCompile 'io.projectreactor.addons:reactor-test'
+	testCompile 'io.projectreactor:reactor-test'
 	testCompile 'org.skyscreamer:jsonassert'
 	testCompile 'org.springframework:spring-test'
 }

webflux/spring-security-webflux.gradle

@@ -5,7 +5,7 @@ dependencies {
 	compile project(':spring-security-web')
 	compile 'org.springframework:spring-webflux'
 
-	testCompile 'io.projectreactor.addons:reactor-test'
+	testCompile 'io.projectreactor:reactor-test'
 	testCompile 'org.springframework:spring-test'
 
 	integrationTestCompile 'com.squareup.okhttp3:mockwebserver'