go.mod: update tscert package (#6384)

The latest tscert allows callers to provide a custom http.Transport for
calling Tailscale's local API.

Updates tailscale/caddy-tailscale#66

go.mod

@@ -26,7 +26,7 @@ require (
 	github.com/spf13/cobra v1.8.0
 	github.com/spf13/pflag v1.0.5
 	github.com/stretchr/testify v1.9.0
-	github.com/tailscale/tscert v0.0.0-20240517230440-bbccfbf48933
+	github.com/tailscale/tscert v0.0.0-20240608151842-d3f834017e53
 	github.com/yuin/goldmark v1.7.1
 	github.com/yuin/goldmark-highlighting/v2 v2.0.0-20230729083705-37449abec8cc
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0

go.sum

@@ -415,8 +415,8 @@ github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-github.com/tailscale/tscert v0.0.0-20240517230440-bbccfbf48933 h1:pV0H+XIvFoP7pl1MRtyPXh5hqoxB5I7snOtTHgrn6HU=
-github.com/tailscale/tscert v0.0.0-20240517230440-bbccfbf48933/go.mod h1:kNGUQ3VESx3VZwRwA9MSCUegIl6+saPL8Noq82ozCaU=
+github.com/tailscale/tscert v0.0.0-20240608151842-d3f834017e53 h1:uxMgm0C+EjytfAqyfBG55ZONKQ7mvd7x4YYCWsf8QHQ=
+github.com/tailscale/tscert v0.0.0-20240608151842-d3f834017e53/go.mod h1:kNGUQ3VESx3VZwRwA9MSCUegIl6+saPL8Noq82ozCaU=
 github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
 github.com/urfave/cli v1.22.14 h1:ebbhrRiGK2i4naQJr+1Xj92HXZCrK7MsyTS/ob3HnAk=
 github.com/urfave/cli v1.22.14/go.mod h1:X0eDS6pD6Exaclxm99NJ3FiCDRED7vIHpx2mDOHLvkA=