Bump version to 1.3.1

[javierdelapuente]

Applicable spec:

Overview

Minor version that removes the APP_ prefix for integrations in Go and FastAPI frameworks.

Rationale

Juju Events Changes

Module Changes

Library Changes

Checklist

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

[github-actions]

Test coverage for f7ff06c

Name                                            Stmts   Miss Branch BrPart  Cover   Missing
-------------------------------------------------------------------------------------------
paas_app_charmer/__init__.py                       32     17      0      0    47%   13-14, 19-20, 26-27, 33-37, 43-44, 50-51, 57-58
paas_app_charmer/_gunicorn/__init__.py              0      0      0      0   100%
paas_app_charmer/_gunicorn/charm.py                15      0      0      0   100%
paas_app_charmer/_gunicorn/webserver.py            83      4     16      1    95%   175, 187-193
paas_app_charmer/_gunicorn/workload_config.py       8      0      0      0   100%
paas_app_charmer/_gunicorn/wsgi_app.py             16      0      0      0   100%
paas_app_charmer/app.py                           157      0     68      3    99%   110->exit, 167->173, 341->343
paas_app_charmer/charm.py                         240     26     60      3    90%   34-35, 42-43, 205, 215-216, 218-219, 248-252, 309-311, 372-373, 378, 383, 388, 398, 403, 408, 413, 418, 443
paas_app_charmer/charm_state.py                   107      2     20      2    97%   187, 277
paas_app_charmer/charm_utils.py                    23      0      0      0   100%
paas_app_charmer/database_migration.py             35      0      2      0   100%
paas_app_charmer/databases.py                      25      2     11      1    92%   89-90
paas_app_charmer/django/__init__.py                 2      0      0      0   100%
paas_app_charmer/django/charm.py                   44      4     10      2    89%   48, 108, 123-124
paas_app_charmer/exceptions.py                      5      0      0      0   100%
paas_app_charmer/fastapi/__init__.py                2      0      0      0   100%
paas_app_charmer/fastapi/charm.py                  31      0      0      0   100%
paas_app_charmer/flask/__init__.py                  2      0      0      0   100%
paas_app_charmer/flask/charm.py                    26      0      0      0   100%
paas_app_charmer/framework.py                      23      4     12      2    77%   34, 47-49
paas_app_charmer/go/__init__.py                     2      0      0      0   100%
paas_app_charmer/go/charm.py                       28      0      0      0   100%
paas_app_charmer/observability.py                  24      3      8      1    81%   42->46, 73-77
paas_app_charmer/rabbitmq.py                       78      2     22      5    93%   117->exit, 122->exit, 157->exit, 159-160, 181->175
paas_app_charmer/secret_storage.py                 50      2     16      4    91%   55->54, 56->58, 86, 105
paas_app_charmer/utils.py                          44      7     22      5    76%   34, 36, 56-57, 75, 79, 104
-------------------------------------------------------------------------------------------
TOTAL                                            1102     73    267     29    92%

Static code analysis report

Run started:2024-10-03 08:48:16.145138

Test results:
  No issues identified.

Code scanned:
  Total lines of code: 2363
  Total lines skipped (#nosec): 1
  Total potential issues skipped due to specifically being disabled (e.g., #nosec BXXX): 2

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):