build(deps): bump github.com/awslabs/goformation/v4

Bumps [github.com/awslabs/goformation/v4](https://github.com/awslabs/goformation) from 4.14.0 to 4.15.0.
- [Release notes](https://github.com/awslabs/goformation/releases)
- [Changelog](https://github.com/awslabs/goformation/blob/master/CHANGELOG.md)
- [Commits](https://github.com/awslabs/goformation/compare/v4.14.0...v4.15.0)

Signed-off-by: dependabot-preview[bot] <[email protected]>

go.mod

@@ -20,7 +20,7 @@ require (
 	github.com/Microsoft/go-winio v0.4.15-0.20190919025122-fc70bd9a86b5
 	github.com/Microsoft/hcsshim v0.8.9 // indirect
 	github.com/aws/aws-sdk-go v1.34.8
-	github.com/awslabs/goformation/v4 v4.14.0
+	github.com/awslabs/goformation/v4 v4.15.0
 	github.com/buger/goterm v0.0.0-20200322175922-2f3e71b85129
 	github.com/compose-spec/compose-go v0.0.0-20200818070525-eb1188aae4a2
 	github.com/containerd/console v1.0.0

go.sum

@@ -68,6 +68,8 @@ github.com/aws/aws-sdk-go v1.34.8 h1:GDfVeXG8XQDbpOeAj7415F8qCQZwvY/k/fj+HBqUnBA
 github.com/aws/aws-sdk-go v1.34.8/go.mod h1:5zCpMtNQVjRREroY7sYe8lOMRSxkhG6MZveU8YkpAk0=
 github.com/awslabs/goformation/v4 v4.14.0 h1:E2Pet9eIqA4qzt3dzzzE4YN83V4Kyfbcio0VokBC9TA=
 github.com/awslabs/goformation/v4 v4.14.0/go.mod h1:GcJULxCJfloT+3pbqCluXftdEK2AD/UqpS3hkaaBntg=
+github.com/awslabs/goformation/v4 v4.15.0 h1:yZM85dzEKrRIPpMZIdsUV+EWbvhWsfoqC81Fv/aFPck=
+github.com/awslabs/goformation/v4 v4.15.0/go.mod h1:GcJULxCJfloT+3pbqCluXftdEK2AD/UqpS3hkaaBntg=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=