[AIRFLOW-7013] Automated check if Breeze image needs to be pulled

[potiuk]

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Issue link: AIRFLOW-7013

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[potiuk]

This one implements automated check if it is worth to pull image rather than build it locally. When the image is changed a lot (for example with buster) it makes very little sense to rebuild the image, it's better to pull it.

This change will automatically detect if it is worth to build or pull&build image when you reach the "need rebuild phase".

[ashb]

Can you add some docs/comments in the PR somewhere about

1. what this is doing -- I'm having trouble following the logic; and
2. why (your comment in the PR should go in the script somewhere)

[codecov-io]

Codecov Report

Merging #7656 into master will decrease coverage by 0.48%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #7656      +/-   ##
==========================================
- Coverage   86.98%   86.49%   -0.49%     
==========================================
  Files         904      904              
  Lines       43736    43736              
==========================================
- Hits        38045    37831     -214     
- Misses       5691     5905     +214     

Impacted Files	Coverage Δ
...flow/providers/apache/cassandra/hooks/cassandra.py	21.51% <0.00%> (-72.16%)	⬇️
...w/providers/apache/hive/operators/mysql_to_hive.py	35.84% <0.00%> (-64.16%)	⬇️
airflow/providers/postgres/operators/postgres.py	50.00% <0.00%> (-50.00%)	⬇️
airflow/providers/redis/operators/redis_publish.py	50.00% <0.00%> (-50.00%)	⬇️
airflow/providers/mongo/sensors/mongo.py	53.33% <0.00%> (-46.67%)	⬇️
airflow/providers/mysql/operators/mysql.py	55.00% <0.00%> (-45.00%)	⬇️
airflow/providers/redis/sensors/redis_key.py	61.53% <0.00%> (-38.47%)	⬇️
airflow/executors/celery_executor.py	50.67% <0.00%> (-37.84%)	⬇️
...roviders/google/cloud/operators/postgres_to_gcs.py	52.94% <0.00%> (-32.36%)	⬇️
airflow/providers/postgres/hooks/postgres.py	78.87% <0.00%> (-15.50%)	⬇️
... and 6 more

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[potiuk]

All should be good now!

[potiuk]

Hey @ashb -> are you OK with those comments ?