feat(systemtests): increase verbosity (backport #22306)

[mergify]

Description

Increase verbosity of system tests when --verbose is enabled.
Will help when debugging (cc @testinginprod)

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Summary by CodeRabbit

• New Features
  • Enhanced CLI command execution with improved debug logging for better error visibility.
  • Added transaction hash existence check to improve transaction confirmation reliability.
  • Automatically appends default fees to command arguments for streamlined transaction processing.

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This is an automatic backport of pull request #22306 done by [Mergify](https://mergify.com).