Update dependencies

Gopkg.lock

@@ -14,12 +14,12 @@
   version = "v1.2.4"
 
 [[projects]]
-  digest = "1:379d34d9efc755fab444199f007819fe99718640f9ccfbdd3f0430340bb02b07"
+  digest = "1:bb7f91ab4d1c44a3bb2651c613463c134165bda0282fca891a63b88d1b501997"
   name = "github.com/coreos/go-oidc"
   packages = ["."]
   pruneopts = ""
-  revision = "2be1c5b8a260760503f66dc0996e102b683b3ac3"
-  version = "v2.1.0"
+  revision = "8d771559cf6e5111c9b9159810d0e4538e7cdc82"
+  version = "v2.2.1"
 
 [[projects]]
   digest = "1:0deddd908b6b4b768cfc272c16ee61e7088a60f7fe2f06c547bd3d8e1f8b8e77"
@@ -110,12 +110,12 @@
   version = "v1.0.5"
 
 [[projects]]
-  digest = "1:381bcbeb112a51493d9d998bbba207a529c73dbb49b3fd789e48c63fac1f192c"
+  digest = "1:f7b541897bcde05a04a044c342ddc7425aab7e331f37b47fbb486cd16324b48e"
   name = "github.com/stretchr/testify"
   packages = ["assert"]
   pruneopts = ""
-  revision = "ffdc059bfe9ce6a4e144ba849dbedead332c6053"
-  version = "v1.3.0"
+  revision = "221dbe5ed46703ee255b1da0dec05086f5035f62"
+  version = "v1.4.0"
 
 [[projects]]
   branch = "master"
@@ -229,6 +229,14 @@
   revision = "4ef0f1b175ccd65472d154e1207c4d7b8102545f"
   version = "v2.4.1"
 
+[[projects]]
+  digest = "1:2efc9662a6a1ff28c65c84fc2f9030f13d3afecdb2ecad445f3b0c80e75fc281"
+  name = "gopkg.in/yaml.v2"
+  packages = ["."]
+  pruneopts = ""
+  revision = "53403b58ad1b561927d19068c655246f2db79d48"
+  version = "v2.2.8"
+
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1