Issue #3365151 by phenaproxima, omkar.podey: Update Composer Stager to...

Issue #3365151 by phenaproxima, omkar.podey: Update Composer Stager to 2.0.0-alpha2 to resolve a bug in the rsync file syncer

composer.json

@@ -14,7 +14,7 @@
     },
     "require": {
         "ext-json": "*",
-        "php-tuf/composer-stager": "2.0-alpha1",
+        "php-tuf/composer-stager": "2.0-alpha2",
         "composer-runtime-api": "^2.1"
     },
     "require-dev": {