Add jackson-annotations as an explicit test dependency

This was implicitly available as a transitive dependency, but that
should not be relied on.

It is required for `JsonAutoDetect.Visibility.ANY`.

Note that `jackson-annotations` is versioned independently of the rest
of Jackson and does not use a path-level version suffix.

Author: sschuberth

gradle/libs.versions.toml

@@ -21,6 +21,7 @@ kotlinx-serialization = "1.9.0"
 autoService = "1.1.1"
 incap = "1.0.0"
 jackson = "2.20.1"
+jacksonAnnotations = "2.20"
 
 [libraries]
 androidPlugin = { module = "com.android.tools.build:gradle", version = "8.13.0" }
@@ -69,6 +70,7 @@ rxjava3 = { module = "io.reactivex.rxjava3:rxjava", version = "3.1.12" }
 reactiveStreams = { module = "org.reactivestreams:reactive-streams", version = "1.0.4" }
 scalaLibrary = { module = "org.scala-lang:scala-library", version = "2.13.17" }
 gson = { module = "com.google.code.gson:gson", version = "2.13.2" }
+jacksonAnnotations = { module = "com.fasterxml.jackson.core:jackson-annotations", version.ref = "jacksonAnnotations" }
 jacksonDatabind = { module = "com.fasterxml.jackson.core:jackson-databind", version.ref = "jackson" }
 jacksonDataformatCbor = { module = "com.fasterxml.jackson.dataformat:jackson-dataformat-cbor", version.ref = "jackson" }
 jaxbApi = { module = "javax.xml.bind:jaxb-api", version = "2.3.1" }

retrofit-converters/jackson/build.gradle

@@ -10,6 +10,7 @@ dependencies {
   testImplementation libs.truth
   testImplementation libs.okhttp.mockwebserver
   testImplementation libs.testParameterInjector
+  testImplementation libs.jacksonAnnotations
   testImplementation libs.jacksonDataformatCbor
 }