wip: restclient vs. webclient

- wee need both starters because of import of RestTemplateAutoConfiguration,
  RestClientAutoConfiguration and WebClientAutoConfiguration in SpringBootAdminClientAutoConfiguration
- locally (win 11, gitbash, eclipse) ClientServletApplicationTest not working,
  the --spring.jackson.property-naming-strategy=SNAKE_CASE is not used (no glue why)
  - in github build its working - why is this?
- locally SpringBootAdminClientRegistrationClientAutoConfigurationTest is also not
  working 100% - a lot of "wrong" RegistrationClient are created, doesn't matter
  which "builders" are in the spring context
  - in github build its working - why is this?

Author: Andreas Höhmann

spring-boot-admin-client/pom.xml

@@ -54,11 +54,6 @@
             <artifactId>spring-boot-webclient</artifactId>
             <optional>true</optional>
         </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-http-client</artifactId>
-            <optional>true</optional>
-        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-restclient</artifactId>
@@ -71,12 +66,12 @@
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-webflux</artifactId>
+            <artifactId>spring-boot-starter-web</artifactId>
             <optional>true</optional>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <artifactId>spring-boot-starter-webflux</artifactId>
             <optional>true</optional>
         </dependency>
         <dependency>