fix: update cli-wallet bash tests to reflect token contract changes (#9927)

Fix cli-wallet bash test. Use `mint_to_private` instead of
`mint_private` (which was removed in #9606)

Author: saleel

yarn-project/cli-wallet/test/flows/token_utils/create_main_and_mint_private.sh

@@ -2,10 +2,8 @@ section "Deploying contracts and minting tokens privately"
 
 aztec-wallet create-account -a main
 aztec-wallet deploy token_contract@Token --args accounts:main Test TST 18 -f main -a token
-aztec-wallet create-secret -a shield
-aztec-wallet send mint_private -ca token --args $1 secrets:shield:hash -f main
-aztec-wallet add-note TransparentNote pending_shields -ca token -t last -a main -b $1 secrets:shield:hash
-aztec-wallet send redeem_shield -ca token --args accounts:main $1 secrets:shield -f main
+aztec-wallet send mint_to_private -ca token --args accounts:main accounts:main $1 -f main
+
 
 RESULT_MAIN=$(aztec-wallet simulate balance_of_private -ca token --args accounts:main -f main | grep "Simulation result:" | awk '{print $3}')