feat(snowflake-driver): host env variable

[johancube]

Check List

• Tests has been run in packages where changes made if available
• Linter has been run for changed code
• Tests for the changes have been added if not covered yet
• Docs have been added / updated if required

Description of Changes Made (if issue reference is not provided)

Snowpark docs: connecting to snowflake from inside a container

When creating a connection to Snowflake from a container, you must use SNOWFLAKE_HOST, SNOWFLAKE_ACCOUNT, and the OAuth token. You cannot use the OAuth token without also using SNOWFLAKE_HOST, and you cannot use the OAuth token outside Snowpark Container Services.