fix: freeze dependencies in vault kv requirer

[gruyaume]

Description

Vault KV requirer was using a bad combination of requirements causing the issue with the logs below in the integration tests. Here we use pip-compile to pin the requirements of this charm.

Logs

unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install Traceback (most recent call last):
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install   File "/var/lib/juju/agents/unit-vault-kv-requirer-0/charm/./src/charm.py", line 10, in <module>
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install     from charms.vault_k8s.v0.vault_kv import (
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install   File "/var/lib/juju/agents/unit-vault-kv-requirer-0/charm/lib/charms/vault_k8s/v0/vault_kv.py", line 124, in <module>
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install     from interface_tester.schema_base import DataBagSchema  # type: ignore[import-untyped]
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install   File "/var/lib/juju/agents/unit-vault-kv-requirer-0/charm/venv/interface_tester/__init__.py", line 5, in <module>
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install     from interface_tester.interface_test import Tester
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install   File "/var/lib/juju/agents/unit-vault-kv-requirer-0/charm/venv/interface_tester/interface_test.py", line 16, in <module>
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install     from scenario import Context, Event, Relation, State, state
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install   File "/var/lib/juju/agents/unit-vault-kv-requirer-0/charm/venv/scenario/__init__.py", line 4, in <module>
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install     from scenario.context import ActionOutput, Context
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install   File "/var/lib/juju/agents/unit-vault-kv-requirer-0/charm/venv/scenario/context.py", line 13, in <module>
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install     from scenario.runtime import Runtime
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install   File "/var/lib/juju/agents/unit-vault-kv-requirer-0/charm/venv/scenario/runtime.py", line 20, in <module>
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install     from scenario.state import DeferredEvent, PeerRelation, StoredState
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install   File "/var/lib/juju/agents/unit-vault-kv-requirer-0/charm/venv/scenario/state.py", line 145, in <module>
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install     class CloudCredential:
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install   File "/var/lib/juju/agents/unit-vault-kv-requirer-0/charm/venv/scenario/state.py", line 160, in CloudCredential
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install     def _to_ops(self) -> ops.CloudCredential:
unit-vault-kv-requirer-0: 13:38:47 WARNING unit.vault-kv-requirer/0.install AttributeError: module 'ops' has no attribute 'CloudCredential'

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have added tests that validate the behaviour of the software
• I validated that new and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules