Update golang.org/x/exp digest to 9b4947d

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
golang.org/x/exp	require	digest	7f521ea -> 9b4947d

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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):

• 1 additional dependency was updated

Details:

Package	Change
golang.org/x/mod	v0.18.0 -> v0.20.0