chore(release): 3.15.0 [skip ci]

## [3.15.0](v3.14.0...v3.15.0) (2023-07-05)

### Features

* **varnish:** define varnish version to prevent accidental upgrade to v7 ([0452d6f](0452d6f))
* **varnish:** use additional options correctly by using command ([7412495](7412495))

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@reachdigital/docker-devbox",
-  "version": "3.13.0",
+  "version": "3.15.0",
   "private": true,
   "description": "🐳 Reach Digital Magento 2 Docker+local hybrid devbox 🐳",
   "license": "Apache-2.0",