Fixed VPC Connector usage in Cloud Run Worker v2

[japerry911]

Closes
#251

Example

Screenshots

• VPC Connector Name in action in Cloud Run
  

• VPC Connector Name being declared in Prefect Advanced Config Job Options (can also be declared in the normal configuration selection menu)
  

• VPC Connector Name left blank shows None in Cloud Run and runs successfully
  

Checklist

• References any related issue by including "Closes #" or "Closes ".
  • If no issue exists and your change is not a small fix, please create an issue first.
• Includes tests or only affects documentation.
• Passes pre-commit checks.
  • Run pre-commit install && pre-commit run --all locally for formatting and linting.
• Includes screenshots of documentation updates.
  • Run mkdocs serve view documentation locally.
  • n/a

[zzstoatzz]

makes sense to me! thank you @japerry911 🌟