Use bigint to store job's result size to increase the limit ~2 GiB to…

… ~8 EiB

* I was made aware of this limitation by the following error showing up in
  a cleanup task on OSD:
  ```
  DBIx::Class::Storage::DBI::_dbh_execute(): DBI Exception: DBD::Pg::st execute failed: ERROR:  integer out of range [for Statement "UPDATE jobs SET logs_present = ?, result_size = result_size - 9511751560, t_updated = ? WHERE id = ?" with ParamValues: 1=\'0\', 2=\'2021-03-12 23:23:27\', 3=\'5572530\'] at /usr/share/openqa/script/../lib/OpenQA/Schema/Result/Jobs.pm line 1185
  ```
* Requires 4 more byte per job
* Migration might take a while to execute

dbicdh/PostgreSQL/deploy/92/001-auto-__VERSION.sql

@@ -0,0 +1,18 @@
+--
+-- Created by SQL::Translator::Producer::PostgreSQL
+-- Created on Wed Mar 17 11:36:30 2021
+--
+;
+--
+-- Table: dbix_class_deploymenthandler_versions
+--
+CREATE TABLE dbix_class_deploymenthandler_versions (
+  id serial NOT NULL,
+  version character varying(50) NOT NULL,
+  ddl text,
+  upgrade_sql text,
+  PRIMARY KEY (id),
+  CONSTRAINT dbix_class_deploymenthandler_versions_version UNIQUE (version)
+);
+
+;