Call the key upload utilities inside the create-web3signer-secrets.sh

[sugh01]

🎯 Problem to be solved

The key utility is a Go utility which -

1. Iterates through node validator set, decrypts and uploads the hex into Vault
2. Create web3signer key configuration files
   This is a prerequisite for web3signer setup

At the moment we call it manually, however we have a scope to add this into the create-web3signer-secrets.sh so it can help to avoid the manual step along with a flag to allow the operator to opt out from the upload in case the vault has the keys already

🛠️ Proposed solution

Update the shell script

🧪 Tests

The script should take the cluster name as an input and prepare all needed secrets inside the namespace

👐 Additional acceptance criteria

Ensure cluster is up and running