ci(toolchain): GCC updates to 12.2.Rel1 version

This patch updates to the latest GCC toolchain (12.2.Rel1)

Key additions packaged with GNU toolchain 12.2.Rel1:
* GCC upgraded to source code based on version 12.2.
* Binutils upgraded to source code based on version 2.39.
* Glibc upgraded to version 2.36.

Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
Change-Id: I827cc58797ed28e61885a9e76f8c437fbdb6897b
diff --git a/utils.sh b/utils.sh
index 8e70ad0..d924a0d 100644
--- a/utils.sh
+++ b/utils.sh
@@ -664,7 +664,7 @@
 docker_registry="${docker_registry:-}"
 
 # Define toolchain version and toolchain binary paths
-toolchain_version="11.3.rel1"
+toolchain_version="12.2.rel1"
 
 aarch64_none_elf_dir="${nfs_volume}/pdsw/tools/arm-gnu-toolchain-${toolchain_version}-x86_64-aarch64-none-elf"
 aarch64_none_elf_prefix="aarch64-none-elf-"