Bump org.slf4j:slf4j-simple from 1.7.36 to 2.0.16

Author: nstdio

buildSrc/src/main/kotlin/io.github.nstdio.http.ext.test-conventions.gradle.kts

@@ -66,7 +66,7 @@ val assertJVersion = "3.27.3"
 val kotestAssertionsVersion = "5.8.0"
 val mockitoVersion = "5.15.2"
 val jsonPathAssertVersion = "2.7.0"
-val slf4jVersion = "1.7.36"
+val slf4jVersion = "2.0.16"
 val jacksonVersion = "2.18.2"
 val brotli4JVersion = "1.18.0"
 val brotliOrgVersion = "0.1.2"