Cloud Run V2 work pool's cloudSqlInstance should be cloud_sql_instance

[EmilRex]

Bug summary

Though I don't fully understand why, it's clear that prefect-gcp's cloud run v2 work pool config for cloudSqlInstance should be cloud_sql_instance as in #16382. A user who was trying to attach a cloud SQL instance to their cloud run job was seeing the following error:

Invalid JSON payload received. Unknown name "cloudSqlInstance" at 'job.template.template.volumes[0]'

Having them install directly from the branch in #16382 resolved the issue and they were able to connect to their cloud SQL instance.

Version info

Version:             3.1.1
API version:         0.8.4
Python version:      3.10.14
Git commit:          6b50a2b9
Built:               Fri, Nov 8, 2024 12:38 PM
OS/Arch:             darwin/x86_64
Profile:             ephemeral
Server type:         cloud
Pydantic version:    2.8.2
Integrations:
  prefect-docker:    0.6.2
  prefect-gcp:       0.6.3

Additional context

No response