remove semver and proxyquire (#584)

Author: Uzlopak

package.json

@@ -40,8 +40,6 @@
     "compile-json-stringify": "^0.1.2",
     "is-my-json-valid": "^2.20.0",
     "luxon": "^3.0.1",
-    "proxyquire": "^2.1.3",
-    "semver": "^7.1.0",
     "simple-git": "^3.7.1",
     "standard": "^17.0.0",
     "tap": "^16.0.1",