remove cross version for collection-compat

[sviezypan]

When trying to add Scala3 to zio-zmx this cross version modifier was causing problems since zio-nio brings 2_13 version of scala-collection-compat while zio-json brings scala-collection-compat_3.

[francisdb]

Since releasing this is taking a long time I added an example workaround below:

httpclient-backend-zio has a transitive dependency on dev.zio:zio-nio-core_3:1.0.0-RC11 which causes:

[error] Modules were resolved with conflicting cross-version suffixes in ProjectRef(uri("file:/Users/me/myproj/"), "scala-integration-tests"):
[error]    org.scala-lang.modules:scala-collection-compat _3, _2.13

libraryDependencies ++= Seq(
  "com.softwaremill.sttp.client3" %% "httpclient-backend-zio" % "3.3.15" exclude("org.scala-lang.modules","scala-collection-compat_2.13")
  ..
)

[francisdb]

Any reason this did not make it to 2.0.0-RC1?

[info]   | +-dev.zio:zio-nio_3:2.0.0-RC1
[info]   | | +-dev.zio:zio-streams_3:2.0.0-RC1
[info]   | | | +-org.scala-lang:scala3-library_3:3.1.0 (evicted by: 3.1.1)
[info]   | | |
[info]   | | +-dev.zio:zio_3:2.0.0-RC1
[info]   | | | +-org.scala-lang:scala3-library_3:3.1.0 (evicted by: 3.1.1)
[info]   | | |
[info]   | | +-org.scala-lang.modules:scala-collection-compat_2.13:2.6.0 [S]
[info]   | | +-org.scala-lang:scala3-library_3:3.1.0 (evicted by: 3.1.1)
[info]   | | +-org.scala-lang:scala3-library_3:3.1.1 [S]