Add new shutdown timeout setting for unicorn

Also removes old web-exporter setting for a similar thing.

Note that the web-exporter is also not considered deprecated.
The deprecated web-exporter uses this new setting for it's blackout as
well, rather than the old setting.
14 jobs for add-shutdown-timeout in 63 minutes and 52 seconds (queued for 1 second)
Status Job ID Name Coverage
  Prepare
passed #343674191
check_docs_lint

00:00:43

passed #343726537
danger-review

00:00:23

failed #343674190
danger-review

00:00:18

 
  Review
failed #343674195
review_eks

00:17:39

failed #343674193
review_gke

01:00:01

passed #343674197
allowed to fail manual
stop_review_eks

00:00:31

passed #343674196
allowed to fail manual
stop_review_gke

00:00:25

 
  Specs
skipped #343674199
review_specs_eks
skipped #343674198
review_specs_gke
 
  Qa
passed #343674201
debug_review

00:01:25

skipped #343674203
allowed to fail
qa_eks
skipped #343674202
allowed to fail
qa_gke
skipped #343674200
review_helm_test
 
  Package
passed #343674204
lint_package

00:00:48

 
Name Stage Failure
failed
review_gke Review The script exceeded the maximum execution time set for the job
Saving 5 charts
Downloading cert-manager from repo https://kubernetes-charts.storage.googleapis.com/
Downloading prometheus from repo https://kubernetes-charts.storage.googleapis.com/
Downloading postgresql from repo https://kubernetes-charts.storage.googleapis.com/
Downloading gitlab-runner from repo https://charts.gitlab.io/
Downloading grafana from repo https://kubernetes-charts.storage.googleapis.com/
Deleting outdated charts
Pulling docker image gitlab/gitlab-runner-helper:x86_64-05161b14 ...
ERROR: Job failed: execution took longer than 1h0m0s seconds
failed
review_eks Review
Update Complete.
Saving 5 charts
Downloading cert-manager from repo https://kubernetes-charts.storage.googleapis.com/
Downloading prometheus from repo https://kubernetes-charts.storage.googleapis.com/
Downloading postgresql from repo https://kubernetes-charts.storage.googleapis.com/
Downloading gitlab-runner from repo https://charts.gitlab.io/
Downloading grafana from repo https://kubernetes-charts.storage.googleapis.com/
Deleting outdated charts
ERROR: Job failed: exit code 1