Upgrade to RSocket 1.0.3

Closes gh-25957

build.gradle

@@ -30,7 +30,7 @@ configure(allprojects) { project ->
 			mavenBom "com.fasterxml.jackson:jackson-bom:2.10.5"
 			mavenBom "io.netty:netty-bom:4.1.51.Final"
 			mavenBom "io.projectreactor:reactor-bom:Dysprosium-SR13"
-			mavenBom "io.rsocket:rsocket-bom:1.0.3-SNAPSHOT"
+			mavenBom "io.rsocket:rsocket-bom:1.0.3"
 			mavenBom "org.eclipse.jetty:jetty-bom:9.4.31.v20200723"
 			mavenBom "org.jetbrains.kotlin:kotlin-bom:1.3.72"
 			mavenBom "org.jetbrains.kotlinx:kotlinx-coroutines-bom:1.3.5"
@@ -280,7 +280,6 @@ configure(allprojects) { project ->
 		repositories {
 			mavenCentral()
 			maven { url "https://repo.spring.io/libs-spring-framework-build" }
-			maven { url "https://oss.jfrog.org/artifactory/oss-snapshot-local" } // RSocket
 		}
 	}
 	configurations.all {