feat: publication for blueprint upgrade status SOFIE-2258

[Julusian]

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

feature

• What is the current behavior? (You can also link to an open issue here)

When viewing the upgrades/migrations page in the ui, it calls a method to fetch the status, with a button to refresh the data.
When the /health endpoint is called, it will perform the same calculations with no caching between calls.

• What is the new behavior (if this is a feature change)?

This status calculation has been moved into a custom publication. This helps simplify the frontend code, avoiding the need for the method call and refresh button handling, and also makes the data much more reactive as it is changed.
The systemStatus (/health) endpoint uses this same publication, adding a handle to the publication on first call of the endpoint, and keeping the handle until sofie exits.

This was motivated by wanting to add the upgrade buttons to the blueprint config pages, to make it easier to run the upgrades (which you should be doing after making any config changes) and to see that they need running when editing the config. (this likely needs some thought on styling)

• Other information:

Status

• Code documentation for the relevant parts in the code have been added/updated by the PR author
• The functionality has been tested by the PR author
• Automated tests to cover the new functionality and/or guard against regressions have been added
• The functionality has been tested by NRK

[codecov]

Codecov Report

Attention: 429 lines in your changes are missing coverage. Please review.

Comparison is base (bcfeb99) 58.05% compared to head (ccdf14b) 57.71%.
Report is 82 commits behind head on release51.

Additional details and impacted files

@@              Coverage Diff              @@
##           release51    #1049      +/-   ##
=============================================
- Coverage      58.05%   57.71%   -0.34%     
=============================================
  Files            485      498      +13     
  Lines          78987    79382     +395     
  Branches        4130     4165      +35     
=============================================
- Hits           45855    45815      -40     
- Misses         33077    33511     +434     
- Partials          55       56       +1     

Files	Coverage Δ
meteor/client/lib/data/util/object-to-xml.ts	82.35% <100.00%> (-11.77%)	⬇️
meteor/lib/api/client.ts	100.00% <100.00%> (ø)
meteor/lib/api/methods.ts	87.85% <100.00%> (ø)
meteor/lib/api/migration.ts	100.00% <ø> (ø)
meteor/lib/api/pubsub.ts	95.85% <100.00%> (+0.06%)	⬆️
meteor/lib/lib.ts	77.04% <100.00%> (-0.98%)	⬇️
meteor/lib/logging.ts	84.90% <100.00%> (ø)
meteor/server/api/blueprints/cache.ts	81.57% <100.00%> (-0.48%)	⬇️
meteor/server/api/blueprints/migrationContext.ts	100.00% <100.00%> (ø)
meteor/server/api/cleanup.ts	100.00% <100.00%> (ø)
... and 55 more

... and 4 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.