Merge pull request #8137 from segmentio/DOC-1306

Add info note about Snowflake password only deprecation [DOC-1306]

Author: stayseesong

src/connections/reverse-etl/reverse-etl-source-setup-guides/snowflake-setup.md

@@ -14,7 +14,7 @@ At a high level, when you set up Snowflake for Reverse ETL, the configured user/
 > If you have an existing dbt account with a Git repository, you can use [Segment's dbt extension](/docs/segment-app/extensions/dbt/) to centralize model management and versioning, reduce redundancies, and run CI checks to prevent breaking changes.
 
 ## Set up guide
-Follow the instructions below to set up the Segment Snowflake connector. Segment recommends you use the `ACCOUNTADMIN` role to execute all the commands below, and that you create a user that authenticates with an encrypted key pair.
+Follow the instructions below to set up the Segment Snowflake connector. Segment recommends you use the `ACCOUNTADMIN` role to execute all the commands below, and that you create a user that authenticates with an encrypted key pair. Snowflake plans to deprecate password-only authentication starting August 2026. Learn more in the [Snowflake docs](https://docs.snowflake.com/en/user-guide/security-mfa-rollout){:target="_blank"}.
 
 > info ""
 > Segment has a Terraform provider, powered by the Public API, that you can use to create a Snowflake Reverse ETL source. See the [segment_source (Resource)](https://registry.terraform.io/providers/segmentio/segment/latest/docs/resources/source){:target="_blank”} documentation for more information.

src/connections/storage/catalog/snowflake/index.md

@@ -91,6 +91,9 @@ GRANT CREATE SCHEMA ON DATABASE "SEGMENT_EVENTS" TO ROLE "SEGMENT";
 
 Create the user that Segment uses to connect to your warehouse. You can create a user that authenticates with a key pair. 
 
+> info ""
+> Snowflake plans to deprecate password-only authentication starting August 2026. Learn more in the [Snowflake docs](https://docs.snowflake.com/en/user-guide/security-mfa-rollout){:target="_blank"}.
+
 To create a user that authenticates with a key pair:
 1. Create the user and assign it a key pair by following the instructions in the [Snowflake docs](https://docs.snowflake.com/en/user-guide/key-pair-auth){:target="_blank"}. 
 2. Create a new user by executing the following SQL command, replacing the public key value with the key you previously generated. 
@@ -140,7 +143,7 @@ To connect Snowflake to Segment:
     * Warehouse: The warehouse in your Snowflake account that Segment uses to run SQL 
     * Username: The Snowflake user that Segment uses to run in your warehouse 
     * Authentication
-        * Private key: View Snowflake’s key pair set up doc.You can upload .p8 file format. Key length must be at least 2048-bit. An encrypted key is recommended but not required.
+        * Private key: View Snowflake’s key pair set up doc. You can upload in .p8 file format. Key length must be at least 2048-bit. An encrypted key is recommended but not required.
 4. Test your connection. 
 5. Click **Save**.