Use GMP 6.2.1 in build-many-glibcs.py

[Joseph Myers]

This patch makes build-many-glibcs.py use the recent GMP 6.2.1
release.

Tested with build-many-glibcs.py (host-libraries, compilers and glibcs
builds).

diff --git a/scripts/build-many-glibcs.py b/scripts/build-many-glibcs.py
index afcbbcfb28..277e81dfc0 100755
--- a/scripts/build-many-glibcs.py
+++ b/scripts/build-many-glibcs.py
@@ -768,7 +768,7 @@ class Context(object):
         default_versions = {'binutils': 'vcs-2.35',
                             'gcc': 'vcs-10',
                             'glibc': 'vcs-mainline',
-                            'gmp': '6.2.0',
+                            'gmp': '6.2.1',
                             'linux': '5.9',
                             'mpc': '1.2.1',
                             'mpfr': '4.1.0',

-- 
Joseph S. Myers
joseph@codesourcery.com