chore(ci): remove retry from aztec-up/scripts/run_test.sh (#16445)

This PR removes usage of `retry` from `aztec-up/scripts/run_test.sh` as
this just causes the script to fail as `retry` is not defined.

I've spoken with Adam about this and he asked for me to help revert this
change while he's on holiday.

Author: TomAFrench

aztec-up/scripts/run_test.sh

@@ -3,7 +3,7 @@ set -euo pipefail
 
 trap 'docker rm -f $1 &>/dev/null' SIGINT SIGTERM EXIT
 docker rm -f $1 &>/dev/null || true
-retry docker pull aztecprotocol/dind
+docker pull aztecprotocol/dind
 docker run --rm \
   -d \
   --privileged \