feat: LoggingFilter에서 예외 방어 코드 추가

src/main/kotlin/roomescape/common/log/LoggingFilter.kt

@@ -11,6 +11,7 @@ import org.springframework.stereotype.Component
 import org.springframework.web.filter.OncePerRequestFilter
 import org.springframework.web.util.ContentCachingRequestWrapper
 import org.springframework.web.util.ContentCachingResponseWrapper
+import java.nio.charset.StandardCharsets
 
 private val log = KotlinLogging.logger {}
 
@@ -54,12 +55,20 @@ class LoggingFilter(
 
         if (log.isDebugEnabled()) {
             request.contentAsByteArray.takeIf { it.isNotEmpty() }
-                ?.let { payload["request_body"] = objectMapper.readValue(it, Map::class.java) }
+                ?.let { payload["request_body"] = parseContent(it) }
 
             response.contentAsByteArray.takeIf { it.isNotEmpty() }
-                ?.let { payload["response_body"] = objectMapper.readValue(it, Map::class.java) }
+                ?.let { payload["response_body"] = parseContent(it) }
         }
 
         log.info { objectMapper.writeValueAsString(payload) }
     }
+
+    private fun parseContent(content: ByteArray): Any {
+        return try {
+            objectMapper.readValue(content, Map::class.java)
+        } catch (_: Exception) {
+            String(content, StandardCharsets.UTF_8)
+        }
+    }
 }