Disable Native scaladoc to avoid 3.8.3 doc race condition

Scala 3.8.3's scaladoc renderer has a race in
dotty.tools.scaladoc.renderers.Resources.allResources that
crashes when multiple `doc` tasks run concurrently. It bit
`riddlLibNative` and `passesNative` during `sbt clean test
publish` for both 1.23.2 and 1.23.3, leaving partial Maven
artifacts on GitHub Packages. Each individual `doc` task
succeeds when invoked alone, confirming concurrency as the
trigger.

Set `Compile / doc / sources := Seq.empty` for the Native
variants of `passes` and `riddlLib` so the doc task produces
no output. The empty javadoc.jar still publishes for shape
compatibility. Native consumers very rarely consult the docs
jar; JVM and JS scaladoc are unaffected.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: reid-spencer

build.sbt

@@ -242,6 +242,11 @@ lazy val passes_cp = CrossModule("passes", "riddl-passes")(JVM, JS, Native)
   .jsConfigure(With.noMiMa)
   .nativeConfigure(With.Native(mode = "fast"))
   .nativeConfigure(With.noMiMa)
+  // Scala 3.8.3 scaladoc has a race condition in
+  // Resources.allResources that crashes intermittently when multiple `doc`
+  // tasks run concurrently under `publish`. Disabling Native scaladoc
+  // avoids the race; Native consumers rarely consult the docs jar.
+  .nativeSettings(Compile / doc / sources := Seq.empty)
 val passes = passes_cp.jvm
 val passesJS = passes_cp.js
 val passesNative = passes_cp.native
@@ -325,6 +330,8 @@ lazy val riddlLib_cp: CrossProject = CrossModule("riddlLib", "riddl-lib")(JS, JV
   ))
   .nativeConfigure(With.Native(mode = "fast", buildTarget = "static"))
   .nativeConfigure(With.noMiMa)
+  // See note on passes_cp re: Scala 3.8.3 scaladoc race condition.
+  .nativeSettings(Compile / doc / sources := Seq.empty)
 val riddlLib = riddlLib_cp.jvm
 val riddlLibJS = riddlLib_cp.js
 val riddlLibNative = riddlLib_cp.native