Flaky test: TestConnectAndWait / TestConnectAndWait/connect_goroutine_exits_after_EOF

[thaJeztah]

Description

Seen failing on;

• Add option --ipv4 #5599 (comment)
• (timeout, not goroutines) feat: standardize error for prompt #4939 (comment)
• fix: cli prompt termination exit code #4888 (comment)
• (fix for this test?) plugin: closer-based plugin notification socket #4905
• cli-plugins/socket: remove use of deprecated distribution uuid package #4872 (comment)
• Dockerfile: update golangci-lint to v1.64.5, replace deprecated tenv linter in favor of usetesting #5835 (comment)

--- FAIL: TestConnectAndWait (0.00s)
    --- FAIL: TestConnectAndWait/connect_goroutine_exits_after_EOF (0.00s)
        socket_test.go:190: assertion failed: 6 (int) != 7 (numGoroutines + 1 int)