fix(deps): update github.com/envoyproxy/go-control-plane digest to 2961e36

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
github.com/envoyproxy/go-control-plane	require	digest	3f47acc → 2961e36

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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):

• 4 additional dependencies were updated

Details:

Package	Change
google.golang.org/grpc	v1.83.0 -> v1.83.2
google.golang.org/protobuf	v1.36.12-0.20260120151049-f2248ac996af -> v1.36.12
golang.org/x/net	v0.57.0 -> v0.58.0
golang.org/x/text	v0.40.0 -> v0.41.0