ISD-2761 Add oauth lib and requirer

[Thanhphan1147]

Add the oidc interface to configure upstream_providers in MAS.

Checklist

• The charm style guide was applied
• The contributing guide was applied
• The changes are compliant with ISD054 - Manging 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)

[javierdelapuente]

could you update the pull request description? Thanks!

[github-actions]

Test coverage for 3d2c1b6

Name                                    Stmts   Miss Branch BrPart  Cover   Missing
-----------------------------------------------------------------------------------
src/auth/__init__.py                        0      0      0      0   100%
src/auth/mas.py                            84      7      2      1    91%   82-84, 128->130, 163-164, 325-329
src/backup.py                             175      5     20      2    96%   353-354, 423-424, 481->483, 484
src/backup_observer.py                    134     16     12      0    89%   132-135, 140-143, 179-182, 211-214
src/charm.py                              288     24     66     11    90%   150->152, 155, 229, 287, 291-292, 298-299, 320-321, 345, 352, 427-431, 434-435, 463-465, 485, 582-588
src/charm_types.py                         30      0      0      0   100%
src/database_client.py                     57      1      8      4    92%   35, 47->exit, 69->exit, 88->98
src/database_observer.py                   49      4      2      0    92%   61-64
src/exceptions.py                           3      0      0      0   100%
src/matrix_auth_observer.py                69      7     10      2    89%   66, 146, 160-164
src/media_observer.py                      45      4      2      1    89%   60-62, 81
src/observability.py                       13      0      0      0   100%
src/pebble.py                             194     23     44     11    86%   157->exit, 168-172, 216-217, 237-238, 256-259, 320->325, 330-331, 343-344, 346-347, 378, 380, 382, 384, 386, 418
src/redis_observer.py                      39      3      4      0    93%   63-66
src/s3_parameters.py                       22      0      4      0   100%
src/smtp_observer.py                       61      1     14      2    96%   89, 108->113
src/state/__init__.py                       0      0      0      0   100%
src/state/charm_state.py                  127      9     32      7    90%   164, 168, 189, 214, 220, 226, 230-231, 314
src/state/mas.py                           79      8      6      3    87%   154, 160-161, 187-189, 204, 224
src/state/validation.py                    36      3      2      0    92%   108-110
src/synapse/__init__.py                     3      0      0      0   100%
src/synapse/api.py                        129      6     18      4    93%   111-112, 161, 172, 174, 314
src/synapse/workload.py                   118      4     24      0    94%   365-368
src/synapse/workload_configuration.py     149     26     34     12    79%   90->exit, 94-95, 143-144, 173, 193-194, 226-227, 260, 269-270, 285, 290-291, 312-313, 332->337, 338, 356->358, 368-369, 397, 405->407, 407->409, 414-415, 435->442, 445, 465-466
src/user.py                                23      0      2      0   100%
-----------------------------------------------------------------------------------
TOTAL                                    1927    151    306     60    90%
Coverage failure: total of 90 is less than fail-under=91

Static code analysis report

Working... ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 100% 0:00:00
Run started:2025-01-23 04:25:13.480090

Test results:
  No issues identified.

Code scanned:
  Total lines of code: 9779
  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):

[Thanhphan1147]

Hi @gregory-schiano / @amandahla, can you take a look and review the PR when you have the time? thanks!

[amandahla]

Does this job have any impact on MAS?
Also, should this be run after every restart too?

[amandahla]

Wouldnt this trigger another relation-changed?