Add download-ci-gcc-stamp file

Kobzol · Kobzol · commit 24a20f80df92 · 2025-03-10T11:02:58.000+01:00
diff --git a/src/bootstrap/download-ci-gcc-stamp b/src/bootstrap/download-ci-gcc-stamp
@@ -0,0 +1,4 @@
+Change this file to make users of the `download-ci-gcc` configuration download
+a new version of GCC from CI, even if the GCC submodule hasn’t changed.
+
+Last change is for: https://github.com/rust-lang/rust/pull/138051
