fix(deps): update module connectrpc.com/grpchealth to v1.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
connectrpc.com/grpchealth	v1.3.0 -> v1.4.0

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Release Notes

connectrpc/grpchealth-go (connectrpc.com/grpchealth)

v1.4.0

Compare Source

Bugfixes

• Setting a server-wide status (blank service name) via StaticChecker is no longer ignored by @​jhump in #​75

Full Changelog: https://github.com/connectrpc/grpchealth-go/compare/v1.3.0...v1.4.0

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