Update module sigs.k8s.io/structured-merge-diff/v6 to v7

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
sigs.k8s.io/structured-merge-diff/v6	v6.4.2 → v7.0.0

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Release Notes

kubernetes-sigs/structured-merge-diff (sigs.k8s.io/structured-merge-diff/v6)

v7.0.0

Compare Source

• Updates to Go 1.27
• Switches from json-iterator serialization to stdlib json/v2 serialization

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Configuration

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[renovate]

ℹ️ 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):

• The go directive was updated for compatibility reasons

Due to Go's usage of Minimal Version Selection (MVS), these packages have been updated to the minimum version available, so will still abide by minimumReleaseAge=3 days

Details:

Package	Change
go	1.26.0 -> 1.27