fix: set log=Fasle for jubilant deploy

[yanksyoon]

Applicable spec:

Overview

• set jubilant deploy logs to False

Rationale

• jubilant deploy may contain sensitive commands

Juju Events Changes

• None, only testing changes

Module Changes

Library Changes

Checklist

• The charm style guide was applied.
• The contributing guide was applied.
• The changes are compliant with ISD054 - Managing Charm Complexity
• The documentation for charmhub is updated.
• The PR is tagged with appropriate label (urgent, trivial, complex).
• The changelog is updated with changes that affects the users of the charm.
• The application version number is updated in github-runner-manager/pyproject.toml.

Testing code changes only.