Order metric labels in ObservationConventions

See gh-30223

spring-web/src/main/java/org/springframework/http/client/observation/DefaultClientRequestObservationConvention.java

@@ -90,7 +90,7 @@ public class DefaultClientRequestObservationConvention implements ClientRequestO
 
 	@Override
 	public KeyValues getLowCardinalityKeyValues(ClientRequestObservationContext context) {
-		return KeyValues.of(uri(context), method(context), status(context), clientName(context), exception(context), outcome(context));
+		return KeyValues.of(clientName(context), exception(context), method(context), outcome(context), status(context), uri(context));
 	}
 
 	protected KeyValue uri(ClientRequestObservationContext context) {

spring-web/src/main/java/org/springframework/http/server/observation/DefaultServerRequestObservationConvention.java

@@ -91,7 +91,7 @@ public class DefaultServerRequestObservationConvention implements ServerRequestO
 
 	@Override
 	public KeyValues getLowCardinalityKeyValues(ServerRequestObservationContext context) {
-		return KeyValues.of(method(context), uri(context), status(context), exception(context), outcome(context));
+		return KeyValues.of(exception(context), method(context), outcome(context), status(context), uri(context));
 	}
 
 	@Override

spring-web/src/main/java/org/springframework/http/server/reactive/observation/DefaultServerRequestObservationConvention.java

@@ -91,7 +91,7 @@ public class DefaultServerRequestObservationConvention implements ServerRequestO
 
 	@Override
 	public KeyValues getLowCardinalityKeyValues(ServerRequestObservationContext context) {
-		return KeyValues.of(method(context), uri(context), status(context), exception(context), outcome(context));
+		return KeyValues.of(exception(context), method(context), outcome(context), status(context), uri(context));
 	}
 
 	@Override

spring-webflux/src/main/java/org/springframework/web/reactive/function/client/DefaultClientRequestObservationConvention.java

@@ -94,7 +94,7 @@ public class DefaultClientRequestObservationConvention implements ClientRequestO
 
 	@Override
 	public KeyValues getLowCardinalityKeyValues(ClientRequestObservationContext context) {
-		return KeyValues.of(uri(context), method(context), status(context), clientName(context), exception(context), outcome(context));
+		return KeyValues.of(clientName(context), exception(context), method(context), outcome(context), status(context), uri(context));
 	}
 
 	protected KeyValue uri(ClientRequestObservationContext context) {