Use a low statement timeout in load balancer

What does this MR do and why?

Lowers statement timeout in the load balancer to 100ms to help with Improve application database load balancing log... (#472161)

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assigned to @stomlinson

mentioned in issue #472161

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1 Warning

The master pipeline status page reported failures in rspec-ee migration pg14 2/2 rspec unit pg14 14/44 rspec migration pg14 26/26 rspec migration pg14 23/26 rspec migration pg14 20/26 rspec migration pg14 17/26 rspec migration pg14 16/26 rspec migration pg14 13/26 rspec migration pg14 12/26 rspec migration pg14 5/26 rspec migration pg14 3/26 rspec migration pg14 2/26 rspec-ee unit pg14 single-db-ci-connection 26/39 rspec-ee unit pg14 single-db 32/39 rspec integration pg14 single-db 1/20 rspec unit pg14 single-db-ci-connection 35/44 rspec unit pg14 single-db-ci-connection 11/44 rspec unit pg14 single-db-ci-connection 1/44 rspec unit pg14 single-db 14/44 rspec unit pg14 single-db 6/44 rspec unit pg14 single-redis 36/44 If these jobs fail in your merge request with the same errors, then they are not caused by your changes. Please check for any on-going incidents in the incident issue tracker or in the #master-broken Slack channel.

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Reviewer roulette

Category	Reviewer	Maintainer
backend	@shubhamkrai (UTC+2, 7 hours ahead of author)	@eugielimpin (UTC+8, 13 hours ahead of author)
database	@bmarjanovic (UTC+2, 7 hours ahead of author)	@mbobin (UTC+3, 8 hours ahead of author)

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Generated by Danger

@stomlinson - please see the following guidance and update this merge request.

	1 Error
	Please add typebug typefeature, or typemaintenance label to this merge request.

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• 86909617 - Low statement timeout for lb health checks

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@mattkasa can you take a first look here? I think this is feature complete but I'm curious if you can think of any more tests or anything else we can do to make this safer.