Update charm libraries

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Automated action to fetch latest version of charm libraries. The branch of this PR
will be wiped during the next check. Unless you really know what you're doing, you
most likely don't want to push any commits to this branch.

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Test coverage for a93ec39

Name                            Stmts   Miss Branch BrPart  Cover   Missing
---------------------------------------------------------------------------
src/actions/__init__.py             3      0      0      0   100%
src/actions/register_user.py       22      0      2      0   100%
src/actions/reset_instance.py      21      0      2      0   100%
src/admin_access_token.py          10      0      0      0   100%
src/backup.py                     176      5     24      2    96%   353-354, 423-424, 480->482, 483
src/backup_observer.py            135     16     14      0    89%   132-135, 140-143, 179-182, 211-214
src/charm.py                      288      9     68      7    96%   141->143, 146, 258-259, 286, 293, 373->exit, 391-394, 456-457
src/charm_state.py                109      1     20      1    98%   250
src/charm_types.py                 35      0     10      0   100%
src/database_client.py             53      1     10      3    94%   35, 47->exit, 69->exit
src/database_observer.py           50      3      6      1    93%   71-73, 89->91
src/exceptions.py                   4      0      0      0   100%
src/irc_bridge.py                  37      9      6      0    79%   31, 70-85
src/media_observer.py              53      4      4      2    89%   53, 79, 101-102
src/mjolnir.py                     90      1     28      3    97%   82, 86->93, 91->93
src/observability.py               10      0      0      0   100%
src/pebble.py                     215     36     32      9    82%   120-124, 155-156, 168->exit, 179-183, 202-203, 223-224, 290-291, 293-294, 308, 310, 312, 314, 316, 323-326, 357-358, 377-378, 397-398, 584-604
src/redis_observer.py              53      5      6      1    90%   67-70, 90-91
src/s3_parameters.py               23      0      4      0   100%
src/saml_observer.py               45      1      8      0    98%   63
src/smtp_observer.py               70      4     16      2    93%   74-78, 81, 100->105
src/synapse/__init__.py             4      0      0      0   100%
src/synapse/admin.py               20      2      2      0    91%   40-41
src/synapse/api.py                176      3     24      3    97%   176, 229, 402
src/synapse/workload.py           293     29     64     11    88%   300-301, 322-323, 380->382, 397->exit, 401-402, 422-423, 463-464, 500-501, 520-522, 544-545, 600, 616, 663->666, 690-691, 710, 718->720, 720->722, 727-728, 764, 781, 790-791, 810->815, 816
src/user.py                        24      0      4      0   100%
---------------------------------------------------------------------------
TOTAL                            2019    129    354     45    93%

Static code analysis report

Working... ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 100% 0:00:01
Run started:2024-05-06 09:23:51.901165

Test results:
  No issues identified.

Code scanned:
  Total lines of code: 10711
  Total lines skipped (#nosec): 4
  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):