Move upgrade job resources to separate charts
Follow on to https://repo1.dso.mil/big-bang/product/packages/thanos/-/issues/85 per https://repo1.dso.mil/big-bang/bigbang/-/merge_requests/5300#note_2618278
Moving the resources defined in `chart/templates/bigbang/upgrade-job.yaml` to their own individual charts in `chart/templates/bigbang/upgrade/`
Similar to: https://repo1.dso.mil/big-bang/product/packages/elasticsearch-kibana/-/merge_requests/318
issue