Restrict composer-plugin-api version range

Author: nicolas-grekas

composer.json

@@ -12,7 +12,7 @@
     "minimum-stability": "dev",
     "require": {
         "php": ">=7.1",
-        "composer-plugin-api": ">=1.0"
+        "composer-plugin-api": "^1.0|^2.0"
     },
     "require-dev": {
         "composer/composer": "^1.0.2|^2.0",