deps: bump testify (release-2.2) (#2886)

Backport of #2336 for Go 1.16 tests.

Signed-off-by: David Enyeart <enyeart@us.ibm.com>

go.mod

@@ -57,7 +57,7 @@ require (
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v0.0.0-20150908122457-1967d93db724
-	github.com/stretchr/testify v1.5.1
+	github.com/stretchr/testify v1.7.1-0.20210116013205-6990a05d54c2 // includes ErrorContains
 	github.com/sykesm/zap-logfmt v0.0.2
 	github.com/syndtr/goleveldb v1.0.1-0.20210305035536-64b5b1c73954
 	github.com/tedsuo/ifrit v0.0.0-20180802180643-bea94bb476cc

go.sum

@@ -251,8 +251,8 @@ github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
-github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/stretchr/testify v1.7.1-0.20210116013205-6990a05d54c2 h1:oevpAKCW58ZYJe1hqfgLqg+1zXmYrQ9xf7HLUdfS+qM=
+github.com/stretchr/testify v1.7.1-0.20210116013205-6990a05d54c2/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/sykesm/zap-logfmt v0.0.2 h1:czSzn+PIXCOAP/4NAIHTTziIKB8201PzoDkKTn+VR/8=
 github.com/sykesm/zap-logfmt v0.0.2/go.mod h1:TerDJT124HaO8UTpZ2wJCipJRAKQ9XONM1mzUabIh6M=
 github.com/syndtr/goleveldb v1.0.1-0.20210305035536-64b5b1c73954 h1:xQdMZ1WLrgkkvOZ/LDQxjVxMLdby7osSh4ZEVa5sIjs=
@@ -366,6 +366,8 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
 gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=