Update snap charm library

[addyess]

Pull in the latest snap charm library

Replaces #132

[github-actions]

Test coverage for 069831c

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     265     26    90%
src/charm.py                              438    230    47%
src/containerd.py                         140     16    89%
src/cos_integration.py                     33     12    64%
src/reschedule.py                          77      4    95%
src/snap.py                                79      3    96%
src/token_distributor.py                  165     92    44%
-----------------------------------------------------------
TOTAL                                    1197    383    68%
coverage-report: OK (1.15=setup[0.98]+cmd[0.17] seconds)
congratulations :) (1.20 seconds)

Static code analysis report

Run started:2024-10-26 11:59:50.927343

Test results:
  No issues identified.

Code scanned:
  Total lines of code: 2704
  Total lines skipped (#nosec): 14
  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):