Pin spl-token-cli version to v5.4.0 (#8813)

v3.0: Pin spl-token-cli version to 5.4.0

scripts/spl-token-cli-version.sh

@@ -1,5 +1,5 @@
 # populate this on the stable branch
-splTokenCliVersion=
+splTokenCliVersion=5.4.0
 
 maybeSplTokenCliVersionArg=
 if [[ -n "$splTokenCliVersion" ]]; then