refactor: remove effectless pipe close monitoring (#11)

* fix: pipe breakage test

Signed-off-by: thediveo <thediveo@gmx.eu>

* wip: reproduce macos pipe readiness problem in unit test

Signed-off-by: thediveo <thediveo@gmx.eu>

* test: improve reporting

Signed-off-by: thediveo <thediveo@gmx.eu>

* refactor: pipe breakage checking

Signed-off-by: thediveo <thediveo@gmx.eu>

* wip: refactor to use poll

Signed-off-by: thediveo <thediveo@gmx.eu>

* refactor: remove unnecessary os.ModeNamedPipe

Signed-off-by: thediveo <thediveo@gmx.eu>

* refactor: add context to pipe break detection; use timeout in pipe break unit test

Signed-off-by: thediveo <thediveo@gmx.eu>

* refactor: poll-based pipe monitoring

Signed-off-by: thediveo <thediveo@gmx.eu>

* fix: add context support to pipe checker on Windows

Signed-off-by: thediveo <thediveo@gmx.eu>

* ci: build darwin AMD64 binary

Signed-off-by: thediveo <thediveo@gmx.eu>

* chore: update readme to mention release for macos on amd64

Signed-off-by: thediveo <thediveo@gmx.eu>

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Signed-off-by: thediveo <thediveo@gmx.eu>