Bump gocloud.dev/pubsub/natspubsub from 0.25.0 to 0.26.0 (#3418)

Bumps [gocloud.dev/pubsub/natspubsub](https://github.com/google/go-cloud) from 0.25.0 to 0.26.0.
- [Release notes](https://github.com/google/go-cloud/releases)
- [Commits](https://github.com/google/go-cloud/compare/v0.25.0...v0.26.0)

---
updated-dependencies:
- dependency-name: gocloud.dev/pubsub/natspubsub
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -110,8 +110,8 @@ require (
 	go.etcd.io/etcd/client/v3 v3.5.4
 	go.mongodb.org/mongo-driver v1.10.1
 	go.opencensus.io v0.23.0 // indirect
-	gocloud.dev v0.25.0
-	gocloud.dev/pubsub/natspubsub v0.25.0
+	gocloud.dev v0.26.0
+	gocloud.dev/pubsub/natspubsub v0.26.0
 	gocloud.dev/pubsub/rabbitpubsub v0.25.0
 	golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d // indirect
 	golang.org/x/exp v0.0.0-20220414153411-bcd21879b8fd