Set proxy credentials from functional tests

[igor-sirotin]

1. Read these env vars:

   • STATUS_BUILD_PROXY_USER
   • STATUS_BUILD_PROXY_PASSWORD

2. Pass values to these endpoints as part of WalletSecretsConfig:

   • CreateAccountAndLogin
   • RestoreAccountAndLogin
   • LoginAccount

   status-go/params/config.go

   Lines 551 to 556 in 29bf0d6

   	StatusProxyMarketUser string `json:"StatusProxyMarketUser"`
   	StatusProxyMarketPassword string `json:"StatusProxyMarketPassword"`
   	StatusProxyBlockchainUser string `json:"StatusProxyBlockchainUser"`
   	StatusProxyBlockchainPassword string `json:"StatusProxyBlockchainPassword"`
   	StatusProxyEnabled bool `json:"StatusProxyEnabled"`
   	StatusProxyStageName string `json:"StatusProxyStageName"`

   Reference status-desktop for correspondence of env vars to parameters:
   https://github.com/status-im/status-desktop/blob/73af1b8ba0fd82a5259a5799fef3bd03280869b3/src/app_service/service/accounts/service.nim#L168-L172

     proc buildWalletSecrets(): WalletSecretsConfig =
       return WalletSecretsConfig(
         # ...
         statusProxyMarketUser: STATUS_PROXY_USER_RESOLVED,
         statusProxyMarketPassword: STATUS_PROXY_PASSWORD_RESOLVED,
         statusProxyBlockchainUser: STATUS_PROXY_USER_RESOLVED,
         statusProxyBlockchainPassword: STATUS_PROXY_PASSWORD_RESOLVED,
       )

3. Also set WalletSecretsConfig.statusProxyStageName to "test".

[igor-sirotin]

@antdanchenko raised a risk of potential leak of credentials in functional test logs, if we pass them through API.

I discussed it today with @osmaczko.
Even if we embed it to status-go during build time, anyway there's always a risk of leaking it in geth.log itself.

So we agreed not to overcomplicate things now and pass the credentials through API.
At the same time, we must implement right tools to prevent leaks. We discussed these options:

• Implement SensitiveString type #5678
• On tests teardown, read geth.log and check if it contains any known credentials

[igor-sirotin]

Waiting for #6159 to be merged to prevent conflicts