Fix the CI (box-project#424)

- Pick a random prefix for the requirement checker when on Travis and for a build outside the repo in order to avoid failures due to API rate limits
- Pin the BetterReflection dependency which is otherwise conflicting
- Fix the PHPUnitBridge deprecation

composer.json

@@ -43,10 +43,11 @@
         "ext-phar": "*",
         "amphp/parallel-functions": "^0.1.3",
         "beberlei/assert": "^3.2",
+        "roave/better-reflection": "~3.5.0",
         "composer/semver": "^1.5",
         "composer/xdebug-handler": "^1.3.2",
         "hoa/compiler": "^3.17",
-        "humbug/php-scoper": "^0.11",
+        "humbug/php-scoper": "~0.11",
         "justinrainbow/json-schema": "^5.2",
         "nikic/iter": "^1.6",
         "nikic/php-parser": "^4.2",

phpunit.xml.dist

@@ -10,7 +10,7 @@
 
     <php>
         <env name="BOX_ALLOW_XDEBUG" value="1"/>
-        <env name="SYMFONY_DEPRECATIONS_HELPER" value="weak_vendors" />
+        <env name="SYMFONY_DEPRECATIONS_HELPER" value="max[self]=0" />
 
         <!-- The width is matching the Travis one to avoid any issues with the CI -->
         <env name="COLUMNS" value="80" />

requirement-checker/scoper.inc.php

@@ -14,6 +14,12 @@
 
 function get_prefix(): string
 {
+    if (false !== getenv('TRAVIS') && false === getenv('GITHUB_TOKEN')) {
+        // Ignore this PR to avoid too many builds to fail untimely or locally due to API rate limits because the last
+        // release version could not be retrieved.
+        return 'HumbugBoxTemporaryPrefix';
+    }
+
     $gitHubToken = getenv('GITHUB_TOKEN');
 
     $headerOption = false === $gitHubToken || '' === $gitHubToken