Update all dependencies to v5.13.6.1

| datasource | package                         | from     | to       |
| ---------- | ------------------------------- | -------- | -------- |
| maven      | org.http4k:http4k-format-moshi  | 5.13.5.0 | 5.13.6.1 |
| maven      | org.http4k:http4k-client-apache | 5.13.5.0 | 5.13.6.1 |
| maven      | org.http4k:http4k-core          | 5.13.5.0 | 5.13.6.1 |

Author: renovate[bot]

libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 kotlin = "1.9.22"
-http4k = "5.13.5.0"
+http4k = "5.13.6.1"
 moshix = "0.25.1"
 arrow = "1.2.1"
 graal = "22.3.3" # 22.3.3 Compatable with Java 11