Update dependency gitaly to '~> 18.11.0'

This MR contains the following updates:

Package	Update	Change	Pending	MyDiffEnd
gitaly (source)	minor	'~> 18.10.0' -> '~> 18.11.0'	18.11.2 (+1)	https://my.diffend.io/gems/gitaly/18.10.0/18.11.0

MR created with the help of gitlab-org/frontend/renovate-gitlab-bot

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Release Notes

gitlab-org/gitaly (gitaly)

v18.11.0

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v18.10.5

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v18.10.4

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v18.10.3

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v18.10.2

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v18.10.1

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Configuration

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