fix(deps): update github.com/diamondburned/gotkit digest to 5751b5a

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
github.com/diamondburned/gotkit	require	digest	f664ea5 -> 5751b5a

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[renovate]

ℹ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

• 3 additional dependencies were updated
• The go directive was updated for compatibility reasons

Details:

Package	Change
go	1.18 -> 1.23.2
github.com/diamondburned/gotk4-adwaita/pkg	v0.0.0-20230307050941-20a05fa3a9df -> v0.0.0-20240712143708-824c3ce8a5f4
github.com/diamondburned/gotk4/pkg	v0.0.6-0.20230825053034-ad325703aa2e -> v0.3.1-0.20240731063639-b9c04a888a70
go4.org/unsafe/assume-no-moving-gc	v0.0.0-20230525183740-e7c30c78aeb2 -> v0.0.0-20231121144256-b99613f794b6