fix(deps): update dependency io.micronaut:micronaut-http-client to v4.8.3

Author: renovate[bot]

gradle.properties

@@ -23,7 +23,7 @@ org.gradle.daemon=true
 org.gradle.jvmargs=-Dfile.encoding=UTF-8 -Xmx1536M -XX:MaxMetaspaceSize=1024M
 
 # libraries only specific to test apps, these should not be exposed
-micronautVersion=4.6.5
+micronautVersion=4.8.3
 micronautSerdeJacksonVersion=2.11.0
 springSecurityCoreVersion=7.0.0-SNAPSHOT