Origin/fix master (#1140)

* cherry picked dev changes to make composer updates working

* Update packages

Author: jessevz

composer.json

@@ -22,7 +22,7 @@
         "crell/api-problem": "^3.6",
         "middlewares/negotiation": "^2.1",
         "monolog/monolog": "^2.8",
-        "php-di/php-di": "^6.4",
+        "php-di/php-di": "7.0.7",
         "slim/psr7": "^1.5",
         "slim/slim": "^4.10",
         "tuupola/slim-basic-auth": "^3.3",