Bump github.com/mattermost/mattermost-server/v6 from 6.1.0 to 6.3.0 (#1686)

Bumps [github.com/mattermost/mattermost-server/v6](https://github.com/mattermost/mattermost-server) from 6.1.0 to 6.3.0.
- [Release notes](https://github.com/mattermost/mattermost-server/releases)
- [Changelog](https://github.com/mattermost/mattermost-server/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mattermost/mattermost-server/compare/v6.1.0...v6.3.0)

---
updated-dependencies:
- dependency-name: github.com/mattermost/mattermost-server/v6
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

1 files changed, 18 insertions, 12 deletions

diff --git a/vendor/golang.org/x/crypto/ssh/common.go b/vendor/golang.org/x/crypto/ssh/common.go
index 290382d0..5ae22757 100644
--- a/vendor/golang.org/x/crypto/ssh/common.go
+++ b/vendor/golang.org/x/crypto/ssh/common.go
@@ -69,11 +69,13 @@ var preferredKexAlgos = []string{
 // supportedHostKeyAlgos specifies the supported host-key algorithms (i.e. methods
 // of authenticating servers) in preference order.
 var supportedHostKeyAlgos = []string{
-	CertAlgoRSAv01, CertAlgoDSAv01, CertAlgoECDSA256v01,
+	CertSigAlgoRSASHA2512v01, CertSigAlgoRSASHA2256v01,
+	CertSigAlgoRSAv01, CertAlgoDSAv01, CertAlgoECDSA256v01,
 	CertAlgoECDSA384v01, CertAlgoECDSA521v01, CertAlgoED25519v01,
 
 	KeyAlgoECDSA256, KeyAlgoECDSA384, KeyAlgoECDSA521,
-	KeyAlgoRSA, KeyAlgoDSA,
+	SigAlgoRSASHA2512, SigAlgoRSASHA2256,
+	SigAlgoRSA, KeyAlgoDSA,
 
 	KeyAlgoED25519,
 }
@@ -90,16 +92,20 @@ var supportedCompressions = []string{compressionNone}
 // hashFuncs keeps the mapping of supported algorithms to their respective
 // hashes needed for signature verification.
 var hashFuncs = map[string]crypto.Hash{
-	KeyAlgoRSA:          crypto.SHA1,
-	KeyAlgoDSA:          crypto.SHA1,
-	KeyAlgoECDSA256:     crypto.SHA256,
-	KeyAlgoECDSA384:     crypto.SHA384,
-	KeyAlgoECDSA521:     crypto.SHA512,
-	CertAlgoRSAv01:      crypto.SHA1,
-	CertAlgoDSAv01:      crypto.SHA1,
-	CertAlgoECDSA256v01: crypto.SHA256,
-	CertAlgoECDSA384v01: crypto.SHA384,
-	CertAlgoECDSA521v01: crypto.SHA512,
+	SigAlgoRSA:               crypto.SHA1,
+	SigAlgoRSASHA2256:        crypto.SHA256,
+	SigAlgoRSASHA2512:        crypto.SHA512,
+	KeyAlgoDSA:               crypto.SHA1,
+	KeyAlgoECDSA256:          crypto.SHA256,
+	KeyAlgoECDSA384:          crypto.SHA384,
+	KeyAlgoECDSA521:          crypto.SHA512,
+	CertSigAlgoRSAv01:        crypto.SHA1,
+	CertSigAlgoRSASHA2256v01: crypto.SHA256,
+	CertSigAlgoRSASHA2512v01: crypto.SHA512,
+	CertAlgoDSAv01:           crypto.SHA1,
+	CertAlgoECDSA256v01:      crypto.SHA256,
+	CertAlgoECDSA384v01:      crypto.SHA384,
+	CertAlgoECDSA521v01:      crypto.SHA512,
 }
 
 // unexpectedMessageError results when the SSH message that we received didn't