feat(embedded): make guest token JWT audience callable or str

[lilykuang]

SUMMARY

• Allows setting GUEST_TOKEN_JWT_AUDIENCE as a callable, useful for dynamic guest token audience config.
• following pattern from feat(reports): SLACK_API_TOKEN as callable or str #13634

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #18748 (9cb62f1) into master (c8df849) will decrease coverage by 0.16%.
The diff coverage is 100.00%.

❗ Current head 9cb62f1 differs from pull request most recent head 61c1a99. Consider uploading reports for the commit 61c1a99 to get more accurate results

@@            Coverage Diff             @@
##           master   #18748      +/-   ##
==========================================
- Coverage   66.31%   66.14%   -0.17%     
==========================================
  Files        1620     1620              
  Lines       63075    63080       +5     
  Branches     6370     6370              
==========================================
- Hits        41827    41725     -102     
- Misses      19591    19698     +107     
  Partials     1657     1657              

Flag	Coverage Δ
hive	?
mysql	81.42% <100.00%> (+<0.01%)	⬆️
postgres	81.47% <100.00%> (+<0.01%)	⬆️
presto	?
python	81.55% <100.00%> (-0.35%)	⬇️
sqlite	81.15% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
superset/config.py	91.92% <100.00%> (ø)
superset/security/manager.py	94.38% <100.00%> (+0.05%)	⬆️
superset/db_engines/hive.py	0.00% <0.00%> (-85.19%)	⬇️
superset/db_engine_specs/hive.py	70.27% <0.00%> (-15.45%)	⬇️
superset/db_engine_specs/presto.py	83.47% <0.00%> (-5.65%)	⬇️
superset/connectors/sqla/models.py	87.33% <0.00%> (-1.44%)	⬇️
superset/db_engine_specs/base.py	88.38% <0.00%> (-0.37%)	⬇️
superset/models/core.py	88.86% <0.00%> (-0.25%)	⬇️
superset/utils/core.py	90.15% <0.00%> (-0.13%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update c8df849...61c1a99. Read the comment docs.

[craig-rueda]

LGTM - might be easier to impl as a helper method in the SM

[apole]

GUEST_TOKEN_JWT_AUDIENCE should be set to the domain name of the application that is embedding Superset or the superset Server?.