Update module github.com/google/go-cmp to v0.7.0

This MR contains the following updates:

Package	Type	Update	Change
github.com/google/go-cmp	require	minor	v0.6.0 -> v0.7.0

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Release Notes

google/go-cmp (github.com/google/go-cmp)

v0.7.0

Compare Source

New API:

• (#​367) Support compare functions with SortSlices and SortMaps

Panic messaging:

• (#​370) Detect proto.Message types when failing to export a field

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This MR has been generated by Renovate Bot.

mentioned in issue #4