Update windborne ingestor to fetch per mission and add it to API

[meomancer]

This will fix #183 and #171

This will get observations per mission, to prevent 502 error.
But this changes will just using missions from:

1. https://sensor-data.windbornesystems.com/api/v1/missions.json
2. Balloon that are already saved

[github-actions]

☂️ Python Coverage

current status: ✅

Overall Coverage

Lines	Covered	Coverage	Threshold	Status
9170	8680	95%	0%	🟢

New Files

No new covered files...

Modified Files

No covered modified files...

updated for commit: 91cef6e by action🐍

[codecov]

Codecov Report

Attention: Patch coverage is 85.92814% with 47 lines in your changes missing coverage. Please review.

Project coverage is 94.59%. Comparing base (d723eeb) to head (91cef6e).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...ango_project/gap/providers/airborne_observation.py	60.41%	19 Missing ⚠️
django_project/gap_api/api_views/measurement.py	71.42%	12 Missing ⚠️
django_project/gap/utils/station.py	54.54%	5 Missing ⚠️
django_project/gap/ingestor/wind_borne_systems.py	92.30%	3 Missing ⚠️
django_project/gap/providers/observation.py	90.00%	3 Missing ⚠️
django_project/gap/tasks/station.py	77.77%	2 Missing ⚠️
django_project/gap/utils/reader.py	86.66%	2 Missing ⚠️
django_project/gap/admin/station.py	80.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #194      +/-   ##
==========================================
- Coverage   94.70%   94.59%   -0.12%     
==========================================
  Files         143      147       +4     
  Lines        8598     8893     +295     
==========================================
+ Hits         8143     8412     +269     
- Misses        455      481      +26     

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