Increase memory allocation of weekly update job
Since the move to the toolforge-jobs framework (3a93a59f),
the weekly job has often failed with OOMKilled. [1]
According to the docs, jobs get by default 512Mi memory [2].
On the Grid Engine, the job always ran with 1GB.
Let's increase to 1GB like it used to be.
[1] Email content:
* Job 'weekly-update-wikidata' (cronjob) (emails: all) had 2 events: -- Pod 'weekly-update-wikidata-28568214-7xv2n'. Phase: 'running'. Container state: 'terminated'. Start timestamp 2024-04-26T00:54:04Z. Finish timestamp 2024-04-26T14:53:22Z. Exit code was '137'. With reason 'OOMKilled'. -- Pod 'weekly-update-wikidata-28568214-7xv2n'. Phase: 'failed'. Container state: 'terminated'. Start timestamp 2024-04-26T00:54:04Z. Finish timestamp 2024-04-26T14:53:22Z. Exit code was '137'. With reason 'OOMKilled'.
[2] https://wikitech.wikimedia.org/wiki/Help:Toolforge/Jobs_framework#Job_quotas