crypto/tls: TestVerifyCertificates/TLSv13/RequireAndVerifyClientCert failures

[gopherbot]

#!watchflakes
default <- pkg == "crypto/tls" && test == "TestVerifyCertificates/TLSv13/RequireAndVerifyClientCert"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestVerifyCertificates/TLSv13/RequireAndVerifyClientCert
=== PAUSE TestVerifyCertificates/TLSv13/RequireAndVerifyClientCert
=== CONT  TestVerifyCertificates/TLSv13/RequireAndVerifyClientCert
    handshake_test.go:425: failed to call cli.Close: close tcp 127.0.0.1:57839->127.0.0.1:55054: connection reset by peer
--- FAIL: TestVerifyCertificates/TLSv13/RequireAndVerifyClientCert (0.06s)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "crypto/tls" && test == "TestVerifyCertificates/TLSv13/RequireAndVerifyClientCert"

2024-06-04 19:10 gotip-freebsd-riscv64 go@e8f7a959 crypto/tls.TestVerifyCertificates/TLSv13/RequireAndVerifyClientCert (log)

=== RUN   TestVerifyCertificates/TLSv13/RequireAndVerifyClientCert
=== PAUSE TestVerifyCertificates/TLSv13/RequireAndVerifyClientCert
=== CONT  TestVerifyCertificates/TLSv13/RequireAndVerifyClientCert
    handshake_test.go:425: failed to call cli.Close: close tcp 127.0.0.1:57839->127.0.0.1:55054: connection reset by peer
--- FAIL: TestVerifyCertificates/TLSv13/RequireAndVerifyClientCert (0.06s)

— watchflakes

[FiloSottile]

Duplicate of #68155