Update license headers date

[arturo-seijas]

Applicable spec: N/A

Overview

Update license headers date

Rationale

N/A

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 - Managing 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[bot]]

Test coverage for 497b1cdf66ded0a6b854dd7acc499eefe417e535

Name           Stmts   Miss Branch BrPart  Cover   Missing
----------------------------------------------------------
src/charm.py     189      0     68      1    99%   308->311
----------------------------------------------------------
TOTAL            189      0     68      1    99%

Static code analysis report

Run started:2024-01-04 08:47:56.498656

Test results:
    No issues identified.

Code scanned:
    Total lines of code: 1106
    Total lines skipped (#nosec): 0
    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):