chore(plugins): Bump calendar

[merkata]

Overview

Bumps the calendar plugin to latest commit.

Rationale

Community request to test the latest commit.

Juju Events Changes

n/a

Module Changes

n/a

Library Changes

n/a

Checklist

• [x ] The charm style guide was applied
• [x ] The contributing guide was applied
• [x ] The changes are compliant with ISD054 - Manging Charm Complexity
• [x ] The documentation is generated using src-docs
• [x ] The documentation for charmhub is updated.
• [x ] The PR is tagged with appropriate label (urgent, trivial, complex)

[github-actions]

Test coverage for 4123b44

Name              Stmts   Miss Branch BrPart  Cover   Missing
-------------------------------------------------------------
src/charm.py        329     30     80     11    90%   177, 185-186, 350->355, 552-554, 559-560, 571-573, 578-579, 591-593, 598-599, 611-613, 638-640, 682->exit, 692->exit, 722-728, 754->exit, 768-769, 779->exit, 793
src/database.py      30      1      8      1    95%   56
-------------------------------------------------------------
TOTAL               359     31     88     12    90%

Static code analysis report

Run started:2024-03-01 12:35:17.000840

Test results:
  No issues identified.

Code scanned:
  Total lines of code: 1985
  Total lines skipped (#nosec): 1
  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):

[Thanhphan1147]

It's strange that the plugin doesn't have some kind of versioning.

[nrobinaubertin]

This new commit is not compatible and the issue that we're trying to fix comes from a mismatch deployment