deps: update module github.com/xanzy/go-gitlab to v0.103.0

This MR contains the following updates:

Package	Type	Update	Change
github.com/xanzy/go-gitlab	require	minor	v0.98.0 -> v0.103.0

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Release Notes

xanzy/go-gitlab (github.com/xanzy/go-gitlab)

v0.103.0

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v0.102.0

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v0.101.0

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v0.100.0

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v0.99.0

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