Update gitlab-org/gitlab-exporter from 13.4.1 to 13.5.0

The following dependencies have been updated by deps:

• gitlab-org/gitlab-exporter from 13.4.1 to 13.5.0

Relates MRs:

• Update gitlab-org/gitlab-exporter from 13.4.1 t... (gitlab-org/build/CNG!1615 - merged)
• Update gitlab-org/gitlab-exporter from 13.4.1 t... (gitlab-org/omnibus-gitlab!7241 - merged)

Test Plan

1. Exec into a exporter pod

2. Confirm the exporter can be queried

   > gem list | grep exporter
   gitlab-exporter (13.5.0)
   > curl --silent localhost:9168/metrics | head -n5
   ruby_gc_stat_count 26
   ruby_gc_stat_heap_allocated_pages 312
   ruby_gc_stat_heap_sorted_length 312
   ruby_gc_stat_heap_allocatable_pages 0
   ruby_gc_stat_heap_available_slots 127485