Downgrade composer-unused

Author: tvdijen

.github/workflows/php.yml

@@ -52,7 +52,7 @@ jobs:
         with:
           # Should be the higest supported version, so we can use the newest tools
           php-version: '8.3'
-          tools: composer, composer-require-checker, composer-unused, phpcs
+          tools: composer, composer-require-checker, composer-unused:0.9.2, phpcs
           extensions: ctype, date, dom, filter, hash, mbstring, openssl, pcre, soap, spl, xml
           coverage: none