build(deps): bump github.com/lucas-clemente/quic-go (#6599)

Bumps [github.com/lucas-clemente/quic-go](https://github.com/lucas-clemente/quic-go) from 0.15.5 to 0.15.6.
- [Release notes](https://github.com/lucas-clemente/quic-go/releases)
- [Changelog](https://github.com/lucas-clemente/quic-go/blob/master/Changelog.md)
- [Commits](https://github.com/lucas-clemente/quic-go/compare/v0.15.5...v0.15.6)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

go.mod

@@ -24,7 +24,7 @@ require (
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51
 	github.com/kr/pretty v0.2.0 // indirect
 	github.com/lib/pq v1.2.0
-	github.com/lucas-clemente/quic-go v0.15.5
+	github.com/lucas-clemente/quic-go v0.15.6
 	github.com/maruel/panicparse v1.3.0
 	github.com/mattn/go-isatty v0.0.11
 	github.com/minio/sha256-simd v0.1.1

go.sum

@@ -158,6 +158,8 @@ github.com/lib/pq v1.2.0 h1:LXpIM/LZ5xGFhOpXAQUIMM1HdyqzVYM13zNdjCEEcA0=
 github.com/lib/pq v1.2.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
 github.com/lucas-clemente/quic-go v0.15.5 h1:2DR5qCVt4k1qnDmknf+idj1FDJIrkiDyS6a0uIR+UJY=
 github.com/lucas-clemente/quic-go v0.15.5/go.mod h1:Myi1OyS0FOjL3not4BxT7KN29bRkcMUV5JVVFLKtDp8=
+github.com/lucas-clemente/quic-go v0.15.6 h1:2l7g4fjjjwqmM3NirLiBtszMaR7aDTSsiiXY9FrGroo=
+github.com/lucas-clemente/quic-go v0.15.6/go.mod h1:Myi1OyS0FOjL3not4BxT7KN29bRkcMUV5JVVFLKtDp8=
 github.com/lunixbochs/vtclean v1.0.0/go.mod h1:pHhQNgMf3btfWnGBVipUOjRYhoOsdGqdm/+2c2E2WMI=
 github.com/mailru/easyjson v0.0.0-20190312143242-1de009706dbe/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/marten-seemann/qpack v0.1.0/go.mod h1:LFt1NU/Ptjip0C2CPkhimBz5CGE3WGDAUWqna+CNTrI=