fix(serialization): Remove legacy BinaryFormatter support

The `[Serializable]` attribute and corresponding `[OnDeserialized]` methods have been removed from various breakdown classes. This eliminates reliance on `BinaryFormatter`, which is a deprecated and insecure serialization mechanism in modern .NET.

This change also resolves SonarQube rule S5766 warnings by removing the context in which they apply, leading to cleaner and more secure code.

src/Strata.SqlTools.Snowflake/Breakdowns/UpdateBreakdown.cs

@@ -1,5 +1,4 @@
 using System.Collections;
-using System.Runtime.Serialization;
 using System.Text;
 using SqlServerUpdateBreakdown = Strata.SqlTools.Breakdowns.SqlServer.UpdateBreakdown;
 using StatementParser = Strata.SqlTools.Statements.Snowflake.StatementParser;
@@ -9,7 +8,6 @@ namespace Strata.SqlTools.Breakdowns.Snowflake;
 /// <summary>
 /// Represents an UPDATE SQL statement breakdown with SET, FROM, and WHERE clauses for Snowflake.
 /// </summary>
-[Serializable]
 public class UpdateBreakdown : SqlServerUpdateBreakdown
 {
     private static readonly StatementParser SnowflakeParserInstance = new StatementParser();
@@ -46,14 +44,6 @@ public class UpdateBreakdown : SqlServerUpdateBreakdown
         WhereClause.Comment = whereComments.Count > 0 ? string.Join(" ", whereComments) : null;
     }
 
-    /// <summary>
-    /// Re-establishes invariants after deserialization, since deserialization bypasses the
-    /// constructors that normally initialize the breakdown's clause state (SonarQube rule S5766).
-    /// </summary>
-    /// <param name="context">The streaming context for the deserialization operation.</param>
-    [OnDeserialized]
-    private void OnDeserialized(StreamingContext context) => RevalidateBreakdownState();
-
     /// <summary>
     /// Gets the SQL breakdown as a string for Snowflake.
     /// </summary>