chore(crons): Return a better message from deprecated crons ingest apis

[wedamija]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 60.00000% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 83.06%. Comparing base (f53fbe1) to head (b7bb7f4).
Report is 36 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #66388      +/-   ##
==========================================
- Coverage   84.30%   83.06%   -1.24%     
==========================================
  Files        5309     5309              
  Lines      237185   237209      +24     
  Branches    41033    41040       +7     
==========================================
- Hits       199948   197049    -2899     
- Misses      37018    39940    +2922     
- Partials      219      220       +1     

Files	Coverage Δ
src/sentry/monitors/endpoints/base.py	86.87% <100.00%> (+0.08%)	⬆️
...nitors/endpoints/monitor_ingest_checkin_details.py	90.32% <50.00%> (ø)
...monitors/endpoints/monitor_ingest_checkin_index.py	95.09% <50.00%> (ø)

... and 269 files with indirect coverage changes