[Flaky test] TestTmuxVisibilityLifecycle

[github-actions]

The top-level test TestTmuxVisibilityLifecycle failed on main.

Run: 36136206147
Commit range: e4b912c03aff...86cee37375d3

Observed failures

• test-race: assertion

Log excerpts

test-race (assertion)

--- FAIL: TestTmuxVisibilityLifecycle (0.00s)
ok  	github.com/docker/docker-agent/pkg/tools/codemode	1.096s
ok  	github.com/docker/docker-agent/pkg/tools/lifecycle	1.098s
ok  	github.com/docker/docker-agent/pkg/tools/mcp	3.134s
ok  	github.com/docker/docker-agent/pkg/tools/mcp/keyringstore	1.240s
ok  	github.com/docker/docker-agent/pkg/tools/mcp/oauthflow	1.039s
?   	github.com/docker/docker-agent/pkg/tools/toolsetpath	[no test files]
ok  	github.com/docker/docker-agent/pkg/tools/toon	1.030s
ok  	github.com/docker/docker-agent/pkg/tools/workingdir	1.039s
ok  	github.com/docker/docker-agent/pkg/tour	1.050s
-test.shuffle 1790340370996577225
    --- FAIL: TestTmuxVisibilityLifecycle/focus-events=on (13.20s)