Bump code.cloudfoundry.org/tlsconfig from 0.5.0 to 0.6.0

Bumps [code.cloudfoundry.org/tlsconfig](https://github.com/cloudfoundry/tlsconfig) from 0.5.0 to 0.6.0.
- [Release notes](https://github.com/cloudfoundry/tlsconfig/releases)
- [Commits](cloudfoundry/tlsconfig@v0.5.0...v0.6.0)

---
updated-dependencies:
- dependency-name: code.cloudfoundry.org/tlsconfig
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

go.mod

@@ -14,7 +14,7 @@ require (
 	code.cloudfoundry.org/gofileutils v0.0.0-20170111115228-4d0c80011a0f
 	code.cloudfoundry.org/jsonry v1.1.4
 	code.cloudfoundry.org/lager/v3 v3.6.0
-	code.cloudfoundry.org/tlsconfig v0.5.0
+	code.cloudfoundry.org/tlsconfig v0.6.0
 	code.cloudfoundry.org/ykk v0.0.0-20170424192843-e4df4ce2fd4d
 	github.com/SermoDigital/jose v0.9.2-0.20161205224733-f6df55f235c2
 	github.com/blang/semver/v4 v4.0.0

go.sum

@@ -23,8 +23,8 @@ code.cloudfoundry.org/jsonry v1.1.4/go.mod h1:6aKilShQP7w/Ez76h1El2/n9y2OkHuU56n
 code.cloudfoundry.org/lager v1.1.1-0.20191008172124-a9afc05ee5be/go.mod h1:O2sS7gKP3HM2iemG+EnwvyNQK7pTSC6Foi4QiMp9sSk=
 code.cloudfoundry.org/lager/v3 v3.6.0 h1:7SRXrt8N/QzR36yU45wd+oD1dAGhkNE3CrO+9wb6OJs=
 code.cloudfoundry.org/lager/v3 v3.6.0/go.mod h1:gVXmBdSINVyV5bzwY8YOUO7ELszPIHzqCrUA3PcMy2Y=
-code.cloudfoundry.org/tlsconfig v0.5.0 h1:wkdwdVPMPUowUyR4jzl7EttWD6j3Y8uQKcc2VxBh+Nk=
-code.cloudfoundry.org/tlsconfig v0.5.0/go.mod h1:hwoQOMSbbpu1doDFFDK8h5EpM/cWREyWMXEo0H1MFeA=
+code.cloudfoundry.org/tlsconfig v0.6.0 h1:GPhvF8gBmweuEyBhKuQvTIV/Ce3N7z2mWpS5npQuejk=
+code.cloudfoundry.org/tlsconfig v0.6.0/go.mod h1:jKhTjklPGH7pD9wLyUb0EmYmKgHGy7DMRgWOG4oFd34=
 code.cloudfoundry.org/ykk v0.0.0-20170424192843-e4df4ce2fd4d h1:M+zXqtXJqcsmpL76aU0tdl1ho23eYa4axYoM4gD62UA=
 code.cloudfoundry.org/ykk v0.0.0-20170424192843-e4df4ce2fd4d/go.mod h1:YUJiVOr5xl0N/RjMxM1tHmgSpBbi5UM+KoVR5AoejO0=
 filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
@@ -228,8 +228,8 @@ github.com/vito/go-interact v0.0.0-20171111012221-fa338ed9e9ec/go.mod h1:wPlfmgl
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.4.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
-go.step.sm/crypto v0.52.0 h1:3blUzFm0S4tPrijcvcP47tvd7VmEEGJnvzblE+sg5LI=
-go.step.sm/crypto v0.52.0/go.mod h1:GcT4hMILsNiiN3dIXH/Df5fLVs/KIwGZva85faw7lYw=
+go.step.sm/crypto v0.53.0 h1:+1as1ogzuCzx15/468M4mEC5juogI5a0Fzbsyh1CuYY=
+go.step.sm/crypto v0.53.0/go.mod h1:AqLU78RqNUHepLzyOWZuNN/2++Lu7dZENdO9UzWOGSk=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=