Update documentation for QueryBuilder::set

Signed-off-by: Daniel Kesselberg <mail@danielkesselberg.de>

lib/private/DB/QueryBuilder/QueryBuilder.php

@@ -694,7 +694,7 @@ class QueryBuilder implements IQueryBuilder {
 	 * </code>
 	 *
 	 * @param string $key The column to set.
-	 * @param string $value The value, expression, placeholder, etc.
+	 * @param IParameter|string $value The value, expression, placeholder, etc.
 	 *
 	 * @return $this This QueryBuilder instance.
 	 */

lib/public/DB/QueryBuilder/IQueryBuilder.php

@@ -521,7 +521,7 @@ interface IQueryBuilder {
 	 * </code>
 	 *
 	 * @param string $key The column to set.
-	 * @param string $value The value, expression, placeholder, etc.
+	 * @param IParameter|string $value The value, expression, placeholder, etc.
 	 *
 	 * @return $this This QueryBuilder instance.
 	 * @since 8.2.0