Rebootstrap on top of BSP install fixes (#5063)

Author: lihaoyi

build.mill

@@ -1,4 +1,4 @@
-//| mill-version: 0.13.0-M2-42-a720c3
+//| mill-version: 0.13.0-M2-51-773072
 
 package build
 // imports

ci/mill-bootstrap.patch

@@ -1,11 +0,0 @@
-diff --git a/mill-build/build.mill b/mill-build/build.mill
-index 3fc9b0097c8..5b5843a74a6 100644
---- a/mill-build/build.mill
-+++ b/mill-build/build.mill
-@@ -1,5 +1,5 @@
- import mill._
--import mill.runner.meta.MillBuildRootModule
-+import mill.meta.MillBuildRootModule
- import mill.scalalib._
- 
- object `package` extends MillBuildRootModule {

mill-build/build.mill

@@ -1,5 +1,5 @@
 import mill._
-import mill.runner.meta.MillBuildRootModule
+import mill.meta.MillBuildRootModule
 import mill.scalalib._
 
 object `package` extends MillBuildRootModule {