deps(gradle): Upgrade Jackson to version 2.20.0

See [1]. Note that this version introduces inconsistent version naming
with respect to the jackson-annotations artifact, which only uses a
major and minor version, but no patch version. However, this
inconsistency is now transparent thanks to using the Maven BOM.

[1]: https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.20
[2]: FasterXML/jackson-annotations#307

Signed-off-by: Sebastian Schuberth <[email protected]>

Author: sschuberth

gradle/libs.versions.toml

@@ -28,7 +28,7 @@ greenmail = "2.1.5"
 gson = "2.13.1"
 hikari = "7.0.2"
 hoplite = "2.9.0"
-jackson = "2.19.2"
+jackson = "2.20.0"
 jakartaMail = "2.0.2"
 jerseyCommon = "3.1.11"
 jgit = "7.3.0.202506031305-r"

plugins/commands/config/src/main/kotlin/ConfigCommand.kt

@@ -69,7 +69,7 @@ class ConfigCommand(descriptor: PluginDescriptor = ConfigCommandFactory.descript
 
     private val configWriter = YAMLMapper()
         .registerKotlinModule()
-        .setSerializationInclusion(JsonInclude.Include.NON_NULL)
+        .setDefaultPropertyInclusion(JsonInclude.Include.NON_NULL)
         .writerFor(OrtConfiguration::class.java)
         .withRootName("ort")