chore(deps): update dependency lightkube to v0.15.7

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
lightkube	==0.15.5 -> ==0.15.7

---

Release Notes

gtsystem/lightkube (lightkube)

v0.15.7

Compare Source

v0.15.6

Compare Source

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[mateoflorido]

@addyess It looks like this version should resolve the issues with httpx: gtsystem/lightkube#78 (comment). If everything works as expected, we should be able to remove the dependency pinning for httpx and close #212

[github-actions]

Test coverage for 1ee6cec

coverage-report: install_deps /home/runner/work/k8s-operator/k8s-operator/charms/worker/k8s> python -I -m pip install 'coverage[toml]'
coverage-report: commands[0] /home/runner/work/k8s-operator/k8s-operator/charms/worker/k8s> coverage report
Name                                    Stmts   Miss  Cover
-----------------------------------------------------------
lib/charms/k8s/v0/k8sd_api_manager.py     278     29    90%
src/charm.py                              491    244    50%
src/cloud_integration.py                   80      3    96%
src/config/extra_args.py                   29      2    93%
src/containerd.py                         140     16    89%
src/cos_integration.py                     33     12    64%
src/events/update_status.py                51     10    80%
src/inspector.py                           40      4    90%
src/kube_control.py                        39     31    21%
src/literals.py                            21      0   100%
src/protocols.py                           26      5    81%
src/reschedule.py                          77      4    95%
src/snap.py                               185     26    86%
src/token_distributor.py                  181    109    40%
src/upgrade.py                            105     48    54%
-----------------------------------------------------------
TOTAL                                    1776    543    69%
coverage-report: OK (1.19=setup[0.98]+cmd[0.21] seconds)
congratulations :) (1.24 seconds)

Static code analysis report

Run started:2024-12-13 12:17:30.276070

Test results:
  No issues identified.

Code scanned:
  Total lines of code: 3802
  Total lines skipped (#nosec): 3
  Total potential issues skipped due to specifically being disabled (e.g., #nosec BXXX): 0

Run metrics:
  Total issues (by severity):
  	Undefined: 0
  	Low: 0
  	Medium: 0
  	High: 0
  Total issues (by confidence):
  	Undefined: 0
  	Low: 0
  	Medium: 0
  	High: 0
Files skipped (0):