build(deps): bump github.com/labstack/echo/v4 from 4.1.11 to 4.5.0

Bumps [github.com/labstack/echo/v4](https://github.com/labstack/echo) from 4.1.11 to 4.5.0.
- [Release notes](https://github.com/labstack/echo/releases)
- [Changelog](https://github.com/labstack/echo/blob/master/CHANGELOG.md)
- [Commits](https://github.com/labstack/echo/compare/v4.1.11...v4.5.0)

---
updated-dependencies:
- dependency-name: github.com/labstack/echo/v4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

vendor/github.com/labstack/echo/v4/.travis.yml

@@ -1,7 +1,11 @@
+arch:
+  - amd64
+  - ppc64le
+  
 language: go
 go:
-  - 1.11.x
-  - 1.12.x
+  - 1.14.x
+  - 1.15.x
   - tip
 env:
   - GO111MODULE=on