dev-cpp/folly: restrict <libfmt-11 in 2023.06.19.00

The dev-ccp/folly-2023.06.19.00 does fails to build with libfmt-11. The
issue was already addressed in new version in commit [1].

[1] https://github.com/facebook/folly/commit/21e8dcd464ee46b2144a1e4d4c0e452355ae15f0

Signed-off-by: Petr Vaněk <arkamar@gentoo.org>

dev-cpp/folly/folly-2023.06.19.00-r1.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -32,7 +32,7 @@ RDEPEND="
 	dev-libs/double-conversion:=
 	dev-libs/libaio
 	dev-libs/libevent:=
-	dev-libs/libfmt:=
+	<dev-libs/libfmt-11:=
 	dev-libs/libsodium:=
 	dev-libs/openssl:=
 	>=sys-libs/liburing-2.3:=