devspace 4.3.4

[alebcay]

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---

Remove GOPATH as formula supports Go modules.

Relates to #47627.

[alebcay]

==> brew test devspace --verbose
==> FAILED
Testing devspace
/usr/bin/sandbox-exec -f /private/tmp/homebrew20191210-70343-1j8qqcj.sb ruby -W0 -I $LOAD_PATH -- /usr/local/Homebrew/Library/Homebrew/test.rb /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/devspace.rb --verbose
==> /usr/local/Cellar/devspace/4.3.1/bin/devspace help
/usr/local/Cellar/devspace/4.3.1/bin/devspace: /usr/local/Cellar/devspace/4.3.1/bin/devspace: cannot execute binary file
Error: devspace: failed
An exception occurred within a child process:
  Test::Unit::AssertionFailedError: <0> expected but was
<126>.

I'm unable to reproduce this error locally on Catalina.

[alebcay]

After some more research and trial/error, the error 126 is caused by file not being a valid executable. Fix incoming shortly.