Update go.mozilla.org/pkcs7

This includes the fix as described in https://github.com/mozilla-services/pkcs7/pull/59,
which was the reason a fork of the library was used.

go.mod

@@ -25,7 +25,7 @@ require (
 	github.com/smallstep/assert v0.0.0-20200723003110-82e2b9b3b262
 	github.com/smallstep/nosql v0.3.8
 	github.com/urfave/cli v1.22.4
-	go.mozilla.org/pkcs7 v0.0.0-20200128120323-432b2356ecb1
+	go.mozilla.org/pkcs7 v0.0.0-20210826202110-33d05740a352
 	go.step.sm/cli-utils v0.4.1
 	go.step.sm/crypto v0.9.2
 	go.step.sm/linkedca v0.5.0
@@ -43,4 +43,3 @@ require (
 // replace go.step.sm/cli-utils => ../cli-utils
 // replace go.step.sm/linkedca => ../linkedca
 
-replace go.mozilla.org/pkcs7 v0.0.0-20200128120323-432b2356ecb1 => github.com/omorsi/pkcs7 v0.0.0-20210217142924-a7b80a2a8568

go.sum

@@ -510,6 +510,9 @@ go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/bbolt v1.3.5 h1:XAzx9gjCb0Rxj7EoqcClPD1d5ZBxZJk0jbuoPHenBt0=
 go.etcd.io/bbolt v1.3.5/go.mod h1:G5EMThwa9y8QZGBClrRx5EY+Yw9kAhnjy3bSjsnlVTQ=
 go.etcd.io/etcd v0.0.0-20191023171146-3cf2f69b5738/go.mod h1:dnLIgRNXwCJa5e+c6mIZCrds/GIG4ncV9HhK5PX7jPg=
+go.mozilla.org/pkcs7 v0.0.0-20200128120323-432b2356ecb1/go.mod h1:SNgMg+EgDFwmvSmLRTNKC5fegJjB7v23qTQ0XLGUNHk=
+go.mozilla.org/pkcs7 v0.0.0-20210826202110-33d05740a352 h1:CCriYyAfq1Br1aIYettdHZTy8mBTIPo7We18TuO/bak=
+go.mozilla.org/pkcs7 v0.0.0-20210826202110-33d05740a352/go.mod h1:SNgMg+EgDFwmvSmLRTNKC5fegJjB7v23qTQ0XLGUNHk=
 go.opencensus.io v0.20.1/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
 go.opencensus.io v0.20.2/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=