Prepare ad-hoc release of the four previously excluded providers (#14655)

Documentation update for the four previously excluded providers that
got extra fixes/bumping to the latest version of the libraries.

* apache.beam
* apache.druid
* microsoft.azure
* snowflake

(cherry picked from commit b753c7fa60)

Dockerfile

@@ -275,7 +275,6 @@ ENV INSTALL_FROM_PYPI=${INSTALL_FROM_PYPI}
 # Force them on the main Airflow package.
 # * chardet<4 - required to keep snowflake happy
 # * urllib3 - required to keep boto3 happy
-# * pytz<2021.0: required by snowflake provider
 # * pyjwt<2.0.0: flask-jwt-extended requires it
 ARG EAGER_UPGRADE_ADDITIONAL_REQUIREMENTS="chardet<4 urllib3<1.26 pyjwt<2.0.0"
 

Dockerfile.ci

@@ -343,13 +343,12 @@ COPY airflow/__init__.py ${AIRFLOW_SOURCES}/airflow/__init__.py
 
 # Those are additional constraints that are needed for some extras but we do not want to
 # force them on the main Airflow package. Those limitations are:
-# * chardet,<4: required by snowflake provider
+# * chardet<4: required by snowflake provider
 # * lazy-object-proxy<1.5.0: required by astroid
-# * pytz<2021.0: required by snowflake provider
 # * pyOpenSSL: required by snowflake provider https://github.com/snowflakedb/snowflake-connector-python/blob/v2.3.6/setup.py#L201
 # * urllib3<1.26: Required to keep boto3 happy
 # * pyjwt<2.0.0: flask-jwt-extended requires it
-ARG EAGER_UPGRADE_ADDITIONAL_REQUIREMENTS="chardet<4 lazy-object-proxy<1.5.0 pyOpenSSL<20.0.0 pytz<2021.0 urllib3<1.26 pyjwt<2.0.0"
+ARG EAGER_UPGRADE_ADDITIONAL_REQUIREMENTS="chardet<4 lazy-object-proxy<1.5.0 pyOpenSSL<20.0.0 urllib3<1.26 pyjwt<2.0.0"
 ENV EAGER_UPGRADE_ADDITIONAL_REQUIREMENTS=${EAGER_UPGRADE_ADDITIONAL_REQUIREMENTS}
 
 ARG CONTINUE_ON_PIP_CHECK_FAILURE="false"

setup.py

@@ -427,10 +427,7 @@ slack = [
     'slack_sdk>=3.0.0,<4.0.0',
 ]
 snowflake = [
-    # Snowflake connector > 2.3.8 is needed because it has vendored-in, patched urllib and requests libraries
-    # In earlier versions of the snowflake library, monkey-patching the libraries caused other
-    # providers to fail (Google, Amazon etc.)
-    'snowflake-connector-python>=2.3.8',
+    'snowflake-connector-python>=2.4.1',
     'snowflake-sqlalchemy>=1.1.0',
 ]
 spark = [