Compiler: Updates GNUARM to 14.3

Change-Id: Ia666f18b0321e8149a310d2eda434d641ba7c460
Signed-off-by: Matthew Dalzell <matthew.dalzell@arm.com>
diff --git a/build-docs.sh b/build-docs.sh
index ee84372..cd7a55d 100755
--- a/build-docs.sh
+++ b/build-docs.sh
@@ -13,7 +13,7 @@
 
 set -ex
 
-export PATH=$PATH:$GCC_13_2_PATH
+export PATH=$PATH:$GCC_14_3_PATH
 
 mkdir -p ${WORKSPACE}/trusted-firmware-m/build/docs
 cd ${WORKSPACE}/trusted-firmware-m/build/docs