chore(deps): bump golang.org/x/sync in /plugins/common

Bumps [golang.org/x/sync](https://github.com/golang/sync) from 0.2.0 to 0.3.0.
- [Commits](https://github.com/golang/sync/compare/v0.2.0...v0.3.0)

---
updated-dependencies:
- dependency-name: golang.org/x/sync
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

plugins/common/go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/otiai10/copy v1.11.0
 	github.com/ryanuber/columnize v2.1.2+incompatible
 	github.com/spf13/pflag v1.0.5
-	golang.org/x/sync v0.2.0
+	golang.org/x/sync v0.3.0
 )
 
 require (