Reverted to doctrine/cache 1.8

Author: oojacoboo

composer.json

@@ -14,7 +14,7 @@
         "webonyx/graphql-php": "^0.13.4",
         "psr/container": "^1",
         "doctrine/annotations": "^1.7.0",
-        "doctrine/cache": "^1.8 || ^2.0",
+        "doctrine/cache": "^1.8",
         "thecodingmachine/class-explorer": "^1.1.0",
         "psr/simple-cache": "^1",
         "phpdocumentor/reflection-docblock": "^4.3 || ^5.0",