Update charm libraries

[github-actions]

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.

[gregory-schiano]

LGTM

[github-actions]

Test coverage for f894ba2

Name                Stmts   Miss Branch BrPart  Cover   Missing
---------------------------------------------------------------
src/charm.py          520     39    163     27    90%   203-206, 344-345, 557, 607, 667, 702-703, 753-759, 764, 866, 871-872, 944, 951, 1043, 1052, 1064, 1085, 1094, 1113, 1117, 1146, 1199, 1331, 1353, 1360->1362, 1401->exit, 1413, 1430-1432, 1450, 1459-1460
src/cos.py             15      0      0      0   100%
src/exceptions.py      17      1      2      1    89%   41
src/types_.py          15      0      0      0   100%
---------------------------------------------------------------
TOTAL                 567     40    165     28    90%

Static code analysis report

Run started:2023-07-03 12:53:42.598925

Test results:
  No issues identified.

Code scanned:
  Total lines of code: 4914
  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):