build(deps): bump golang.org/x/oauth2 from 0.14.0 to 0.16.0 (#45)

Bumps [golang.org/x/oauth2](https://github.com/golang/oauth2) from 0.14.0 to 0.16.0.
- [Commits](golang/oauth2@v0.14.0...v0.16.0)

---
updated-dependencies:
- dependency-name: golang.org/x/oauth2
  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

@@ -8,7 +8,7 @@ require (
 	github.com/dnsimple/dnsimple-go v1.5.1
 	github.com/miekg/dns v1.1.58
 	github.com/stretchr/testify v1.8.4
-	golang.org/x/oauth2 v0.14.0
+	golang.org/x/oauth2 v0.16.0
 )
 
 require (