Release astronomer-providers 1.19.0

[pankajkoti]

Release astronomer-providers 1.19.0 accomodating
deprecation of most operators and sensors

Sources for reference:

1. Airflow OSS conversation for co-ordination of upstream providers release: https://apache-airflow.slack.com/archives/C03G9H97MM2/p1707232444101679
2. Public documentation PR for deprecation notice: Add deprecation notice docs for astronomer-providers #1468
3. Notion doc for the implementation plan and additional details: https://www.notion.so/astronomerio/Deprecate-astronomer-providers-e16857c5ea814c71afe5009c674d0d67
4. Providers RC1 voting thread: https://lists.apache.org/thread/1gno0gj3240zfx4vkjl4lp2s1ntd8c2g

[Lee-W]

#1485