[gcc r15-10623] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:5ab82f2ed1f57c43563a3c0ad6bc836f8126c727

commit r15-10623-g5ab82f2ed1f57c43563a3c0ad6bc836f8126c727
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Sun Dec 21 00:20:08 2025 +0000

    Daily bump.

Diff:
---
 gcc/DATESTAMP | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 3858255282e0..d1e2e51f3b68 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20251220
+20251221