Update go.mod dependencies

--------

index fa31d31..d4dce75 100644
@@ -1,6 +1,6 @@
 module code.cloudfoundry.org/tlsconfig

-go 1.21
+go 1.22

 toolchain go1.22.3

go.mod

@@ -1,6 +1,6 @@
 module code.cloudfoundry.org/tlsconfig
 
-go 1.21
+go 1.22
 
 toolchain go1.22.3
 
@@ -9,7 +9,7 @@ require github.com/square/certstrap v1.3.0
 require (
 	filippo.io/edwards25519 v1.1.0 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
-	go.step.sm/crypto v0.51.1 // indirect
+	go.step.sm/crypto v0.51.2 // indirect
 	golang.org/x/crypto v0.26.0 // indirect
 	golang.org/x/sys v0.24.0 // indirect
 )

go.sum

@@ -12,8 +12,8 @@ github.com/square/certstrap v1.3.0 h1:N9P0ZRA+DjT8pq5fGDj0z3FjafRKnBDypP0QHpMlaA
 github.com/square/certstrap v1.3.0/go.mod h1:wGZo9eE1B7WX2GKBn0htJ+B3OuRl2UsdCFySNooy9hU=
 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=
-go.step.sm/crypto v0.51.1 h1:ktUg/2hetEMiBAqgz502ktZDGoDoGrcHFg3XpkmkvvA=
-go.step.sm/crypto v0.51.1/go.mod h1:PdrhttNU/tG9/YsVd4fdlysBN+UV503p0o2irFZQlAw=
+go.step.sm/crypto v0.51.2 h1:5EiCGIMg7IvQTGmJrwRosbXeprtT80OhoS/PJarg60o=
+go.step.sm/crypto v0.51.2/go.mod h1:QK7czLjN2k+uqVp5CHXxJbhc70kVRSP+0CQF3zsR5M0=
 golang.org/x/crypto v0.26.0 h1:RrRspgV4mU+YwB4FYnuBoKsUapNIL5cohGAmSH3azsw=
 golang.org/x/crypto v0.26.0/go.mod h1:GY7jblb9wI+FOo5y8/S2oY4zWP07AkOJ4+jxCqdqn54=
 golang.org/x/sys v0.24.0 h1:Twjiwq9dn6R1fQcyiK+wQyHWfaz/BJB+YIpzU/Cv3Xg=