feat!: Store timestamps as timestamp_tz (#17843)

#### Summary

Currently we are storing all timestamps as `timestamp_ntz` this is "wall clock" time meaning that it has no timezone associated with it. the `arrow.TimestampType` is:

```
TimestampType is encoded as a 64-bit signed integer since the UNIX epoch (2017-01-01T00:00:00Z). The zero-value is a second and time zone neutral. Time zone neutral can be considered UTC without having "UTC" as a time zone
```

Which makes it a better fit for users to be able to utilize the data in their queries.

plugins/destination/snowflake/client/client.go

@@ -43,7 +43,7 @@ func New(_ context.Context, logger zerolog.Logger, spec []byte, _ plugin.NewClie
 	if err != nil {
 		return nil, err
 	}
-	db, err := sql.Open("snowflake", dsn+"&BINARY_INPUT_FORMAT=BASE64&BINARY_OUTPUT_FORMAT=BASE64")
+	db, err := sql.Open("snowflake", dsn+"&BINARY_INPUT_FORMAT=BASE64&BINARY_OUTPUT_FORMAT=BASE64&timezone=UTC")
 	if err != nil {
 		return nil, err
 	}

plugins/destination/snowflake/client/deletestale.go

@@ -18,7 +18,7 @@ func (c *Client) DeleteStale(ctx context.Context, msgs message.WriteDeleteStales
 		sb.WriteString(`"` + strings.ToUpper(schema.CqSourceNameColumn.Name) + `"`)
 		sb.WriteString(" = ? and \"")
 		sb.WriteString(strings.ToUpper(schema.CqSyncTimeColumn.Name))
-		sb.WriteString("\"::timestamp_ntz < ?::timestamp_ntz")
+		sb.WriteString("\" < CONVERT_TIMEZONE('UTC','UTC', TO_TIMESTAMP(?))")
 		sql := sb.String()
 		if _, err := c.db.ExecContext(ctx, sql, msg.SourceName, msg.SyncTime); err != nil {
 			return err

plugins/destination/snowflake/client/types.go

@@ -21,7 +21,7 @@ func (*Client) SchemaTypeToSnowflake(t arrow.DataType) string {
 	case *arrow.BinaryType, *arrow.LargeBinaryType:
 		return "binary"
 	case *arrow.TimestampType:
-		return "timestamp_ntz"
+		return "timestamp_tz"
 	case *types.JSONType, *arrow.StructType:
 		return "variant"
 	default: