v6.0.4 requires ops >=2.12, but pyproject.toml only specifies >=2.10

[carlcsaposs-canonical]

using ops-scenario v6.0.4 with ops < 2.12 causes E AttributeError: module 'ops' has no attribute 'CloudCredential'

from

ops-scenario/scenario/state.py

Line 160 in da30b05

def _to_ops(self) -> ops.CloudCredential:

ops.CloudCredential only exists in ops 2.12+ (canonical/operator@8097cca)

but pyproject.toml only requires >=2.10

ops-scenario/pyproject.toml

Line 21 in 77ce447

"ops>=2.10",

[tonyandrewmeyer]

Fixed in #128, as an accidental drive-by.