fix: Switch logging to java.util.logging (#305)

Closes #709

build.gradle

@@ -61,8 +61,6 @@ dependencies {
     testImplementation("org.jetbrains.kotlin:kotlin-test-junit5")
     testImplementation("com.nhaarman.mockitokotlin2:mockito-kotlin:2.2.0")
     testImplementation("org.mockito:mockito-inline:5.2.0")
-
-    implementation("io.github.microutils:kotlin-logging-jvm:3.0.5")
 }
 
 java {

src/main/kotlin/tech/relaycorp/poweb/PoWebClient.kt

@@ -29,7 +29,6 @@ import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.FlowCollector
 import kotlinx.coroutines.flow.flow
-import mu.KotlinLogging
 import okhttp3.OkHttpClient
 import org.bouncycastle.util.encoders.Base64
 import tech.relaycorp.relaynet.bindings.ContentTypes
@@ -57,11 +56,10 @@ import java.net.UnknownHostException
 import java.security.MessageDigest
 import java.security.PublicKey
 import java.time.Duration
+import java.util.logging.Logger
 import kotlin.time.Duration.Companion.seconds
 import kotlin.time.ExperimentalTime
 
-private val logger = KotlinLogging.logger {}
-
 /**
  * PoWeb client.
  *
@@ -82,6 +80,8 @@ public class PoWebClient internal constructor(
             .build()
     }
 ) : PDCClient {
+    private val logger by lazy { Logger.getLogger(javaClass.name) }
+
     internal var ktorClient = HttpClient(ktorEngine) {
         install(WebSockets)
     }