Replace shapeless by shapeless-3 in the community build.

The Scala 3 support of shapeless has entirely moved to the
`typelevel/shapeless-3` repository. The old `shapeless` repository
removed Scala 3 support and is now Scala 2 only.

[Cherry-picked a7409cc]

.gitmodules

@@ -28,10 +28,6 @@
 [submodule "community-build/community-projects/scala-xml"]
 	path = community-build/community-projects/scala-xml
 	url = https://github.com/dotty-staging/scala-xml
-[submodule "community-build/community-projects/shapeless"]
-	path = community-build/community-projects/shapeless
-	url = https://github.com/dotty-staging/shapeless
-	branch = shapeless-3-staging
 [submodule "community-build/community-projects/xml-interpolator"]
 	path = community-build/community-projects/xml-interpolator
 	url = https://github.com/dotty-staging/xml-interpolator.git
@@ -222,3 +218,6 @@
 [submodule "community-build/community-projects/parboiled2"]
 	path = community-build/community-projects/parboiled2
 	url = https://github.com/dotty-staging/parboiled2.git
+[submodule "community-build/community-projects/shapeless-3"]
+	path = community-build/community-projects/shapeless-3
+	url = https://github.com/dotty-staging/shapeless-3.git

community-build/src/scala/dotty/communitybuild/projects.scala

@@ -366,12 +366,10 @@ object projects:
     // sbtDocCommand = "library/doc" // Does no compile? No idea :/
   )
 
-
-  lazy val shapeless = SbtCommunityProject(
-    project       = "shapeless",
-    sbtTestCommand = """set deriving/scalacOptions -= "-Xfatal-warnings"; set typeable/scalacOptions -= "-Xfatal-warnings"; test""",
-      // selectively disable -Xfatal-warnings due to deprecations
-    sbtDocCommand = forceDoc("typeable", "deriving", "data"),
+  lazy val shapeless3 = SbtCommunityProject(
+    project = "shapeless-3",
+    sbtTestCommand = "testJVM; testJS",
+    sbtDocCommand = forceDoc("typeable", "deriving"),
     scalacOptions = SbtCommunityProject.scalacOptions.filter(_ != "-Ysafe-init"), // due to -Xfatal-warnings
   )
 
@@ -796,7 +794,7 @@ def allProjects = List(
   projects.minitest,
   projects.fastparse,
   projects.stdLib213,
-  projects.shapeless,
+  projects.shapeless3,
   projects.xmlInterpolator,
   projects.effpi,
   projects.sconfig,

community-build/test/scala/dotty/communitybuild/CommunityBuildTest.scala

@@ -91,7 +91,7 @@ class CommunityBuildTestC:
   @Test def scalaz = projects.scalaz.run()
   @Test def scas = projects.scas.run()
   @Test def sconfig = projects.sconfig.run()
-  @Test def shapeless = projects.shapeless.run()
+  @Test def shapeless3 = projects.shapeless3.run()
   @Test def sourcecode = projects.sourcecode.run()
   @Test def specs2 = projects.specs2.run()