build(deps): bump github.com/go-openapi/runtime from 0.19.15 to 0.19.19 (#314)

Bumps [github.com/go-openapi/runtime](https://github.com/go-openapi/runtime) from 0.19.15 to 0.19.19.
- [Release notes](https://github.com/go-openapi/runtime/releases)
- [Commits](go-openapi/runtime@v0.19.15...v0.19.19)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

go.mod

@@ -3,9 +3,9 @@ module github.com/elastic/ecctl
 go 1.12
 
 require (
-	github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a
+	github.com/asaskevich/govalidator v0.0.0-20200428143746-21a406dcc535
 	github.com/elastic/cloud-sdk-go v1.0.0-beta3.0.20200623011303-1e53d46b11d8
-	github.com/go-openapi/runtime v0.19.15
+	github.com/go-openapi/runtime v0.19.19
 	github.com/go-openapi/strfmt v0.19.5
 	github.com/pkg/errors v0.9.1
 	github.com/spf13/cobra v0.0.7