[27.1 backport] tests: fix flaxy TestCloseRunningCommand test

[laurazard]

backports #5290 and #5291

[thaJeztah]

LOL, and of course it fails on another flaky test? (TestRunAttachTermination)

ok  	github.com/docker/cli/cli/command/config	0.027s	coverage: 83.8% of statements
Error: something went wrong
Error: write /dev/ttys000: file already closed
panic: Fail in goroutine after TestRunAttachTermination has completed

goroutine 235 [running]:
testing.(*common).Fail(0xc0004ae4e0)
	/Users/runner/hostedtoolcache/go/1.21.12/x64/src/testing/testing.go:952 +0xd4
testing.(*common).FailNow(0xc0004ae4e0)
	/Users/runner/hostedtoolcache/go/1.21.12/x64/src/testing/testing.go:975 +0x26
github.com/docker/cli/vendor/gotest.tools/v3/assert.ErrorIs({0x1c49350, 0xc0004ae4e0}, {0x1c40480?, 0xc00054c000}, {0x1c40520?, 0x230e900}, {0x0, 0x0, 0x0})
	/Users/runner/work/cli/cli/src/github.com/docker/cli/vendor/gotest.tools/v3/assert/assert.go:311 +0x159
github.com/docker/cli/cli/command/container.TestRunAttachTermination.func6()
	/Users/runner/work/cli/cli/src/github.com/docker/cli/cli/command/container/run_test.go:85 +0x85
created by github.com/docker/cli/cli/command/container.TestRunAttachTermination in goroutine 233
	/Users/runner/work/cli/cli/src/github.com/docker/cli/cli/command/container/run_test.go:84 +0x486

[laurazard]

That's another test I'm going to look at today 😅

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 61.50%. Comparing base (1b2782e) to head (7f02bc9).

Additional details and impacted files

@@           Coverage Diff           @@
##             27.0    #5293   +/-   ##
=======================================
  Coverage   61.50%   61.50%           
=======================================
  Files         299      299           
  Lines       20864    20864           
=======================================
  Hits        12832    12832           
  Misses       7116     7116           
  Partials      916      916