update mima latestPatch 2.6.0 (#28135)

build.sbt

@@ -217,7 +217,6 @@ lazy val jackson = akkaModule("akka-serialization-jackson")
   .settings(OSGi.jackson)
   .settings(javacOptions += "-parameters")
   .enablePlugins(ScaladocNoVerificationOfDiagrams)
-  .disablePlugins(MimaPlugin)
 
 lazy val multiNodeTestkit = akkaModule("akka-multi-node-testkit")
   .dependsOn(remote, testkit)

project/MiMa.scala

@@ -13,8 +13,7 @@ import com.typesafe.tools.mima.plugin.MimaPlugin.autoImport._
 object MiMa extends AutoPlugin {
 
   private val latestPatchOf25 = 26
-  // No 2.6 has been released yet. Update to '0' after releasing 2.6.0
-  private val latestPatchOf26 = -1
+  private val latestPatchOf26 = 0
 
   override def requires = MimaPlugin
   override def trigger = allRequirements
@@ -34,7 +33,7 @@ object MiMa extends AutoPlugin {
         else if (projectName.contains("coordination")) 22
         else 0
 
-      if (!projectName.contains("typed")) {
+      if (!(projectName.contains("typed") || projectName.contains("jackson"))) {
         // 2.5.18 is the only release built with Scala 2.12.7, which due to
         // https://github.com/scala/bug/issues/11207 produced many more
         // static methods than expected. These are hard to filter out, so
@@ -46,7 +45,6 @@ object MiMa extends AutoPlugin {
     }
 
     val akka25PromotedArtifacts = Set("akka-distributed-data")
-    val akkaTypedModules = Set("akka-actor-typed")
 
     // check against all binary compatible artifacts
     versions.map { v =>