updated composer dependencies (#1796)

composer.json

@@ -19,6 +19,7 @@
         "ext-xsl": "*",
         "ext-zip": "*",
         "beberlei/doctrineextensions": "^1.2",
+        "composer/package-versions-deprecated": "^1.8",
         "doctrine/doctrine-bundle": "^2.0",
         "doctrine/doctrine-migrations-bundle": "^2.1",
         "doctrine/orm": "^2.7",
@@ -37,7 +38,6 @@
         "mpdf/mpdf": "^8.0",
         "nelmio/api-doc-bundle": "^3.2",
         "nelmio/cors-bundle": "^1.5",
-        "ocramius/proxy-manager": "^2.1.1",
         "onelogin/php-saml": "^3.4",
         "pagerfanta/pagerfanta": "^2.1",
         "phpoffice/phpspreadsheet": "^1.10",