crypto/tls: check client's supported versions when using QUIC

According to RFC 9001 Section 4.2, the client MUST NOT offer any TLS version
older than 1.3.

Fixes #63723.

Change-Id: Ia92f98274ca784e2bc151faf236380af51f699c1
Reviewed-on: https://go-review.googlesource.com/c/go/+/537576
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Damien Neil <dneil@google.com>
1 file changed
tree: 7828dc8c3d9a7cb320b02be59c648fce79fadf15
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. codereview.cfg
  11. CONTRIBUTING.md
  12. go.env
  13. LICENSE
  14. PATENTS
  15. README.md
  16. SECURITY.md
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