[PM-19282] Update SsoUser ExternalId column size to 300 (#5750)

* [PM-19282] Update SsoUser ExternalId column size to 300

* [PM-19282] Add migration to update SsoUser ExternalId column size to 300 for MySQL, PostgreSQL, and SQLite

* [PM-19282] Update SsoUser ExternalId column size conditionally based on existing schema

* Bumped date on migration script name

util/Migrator/DbScripts/2025-05-27_00_SsoExternalId.sql

@@ -0,0 +1,67 @@
+IF EXISTS (
+    SELECT 1
+    FROM INFORMATION_SCHEMA.COLUMNS
+    WHERE TABLE_SCHEMA = 'dbo'
+      AND TABLE_NAME = 'SsoUser'
+      AND COLUMN_NAME = 'ExternalId'
+      AND DATA_TYPE = 'nvarchar'
+      AND CHARACTER_MAXIMUM_LENGTH < 300
+)
+BEGIN
+    -- Update table ExternalId column size
+    ALTER TABLE [dbo].[SsoUser]
+    ALTER COLUMN [ExternalId] NVARCHAR(300) NOT NULL
+END
+GO
+
+-- Update stored procedures to handle the new ExternalId column size
+CREATE OR ALTER PROCEDURE [dbo].[SsoUser_Create]
+    @Id BIGINT OUTPUT,
+    @UserId UNIQUEIDENTIFIER,
+    @OrganizationId UNIQUEIDENTIFIER,
+    @ExternalId NVARCHAR(300),
+    @CreationDate DATETIME2(7)
+AS
+BEGIN
+    SET NOCOUNT ON
+
+    INSERT INTO [dbo].[SsoUser]
+    (
+        [UserId],
+        [OrganizationId],
+        [ExternalId],
+        [CreationDate]
+    )
+    VALUES
+    (
+        @UserId,
+        @OrganizationId,
+        @ExternalId,
+        @CreationDate
+    )
+
+    SET @Id = SCOPE_IDENTITY();
+END
+GO
+
+CREATE OR ALTER PROCEDURE [dbo].[SsoUser_Update]
+    @Id BIGINT OUTPUT,
+    @UserId UNIQUEIDENTIFIER,
+    @OrganizationId UNIQUEIDENTIFIER,
+    @ExternalId NVARCHAR(300),
+    @CreationDate DATETIME2(7)
+AS
+BEGIN
+    SET NOCOUNT ON
+
+    UPDATE
+        [dbo].[SsoUser]
+    SET
+        [UserId] = @UserId,
+        [OrganizationId] = @OrganizationId,
+        [ExternalId] = @ExternalId,
+        [CreationDate] = @CreationDate
+    WHERE
+        [Id] = @Id
+END
+GO