build(deps): bump github.com/labstack/echo/v4 from 4.5.0 to 4.6.0

Bumps [github.com/labstack/echo/v4](https://github.com/labstack/echo) from 4.5.0 to 4.6.0.
- [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/v4.5.0...v4.6.0)

---
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/router.go

@@ -98,6 +98,9 @@ func (r *Router) Add(method, path string, h HandlerFunc) {
 
 	for i, lcpIndex := 0, len(path); i < lcpIndex; i++ {
 		if path[i] == ':' {
+			if i > 0 && path[i-1] == '\\' {
+				continue
+			}
 			j := i + 1
 
 			r.insert(method, path[:i], nil, staticKind, "", nil)