fix: php: packagist translator set version

Set version in `composer.json` to the package version,
composer is conservative and will fail if there the
package version is not set and any dependency version
conflicts are declared.

src/subsystems/php/translators/packagist/default.nix

@@ -52,6 +52,8 @@
       git remote add origin $SOURCE_URL
       git fetch --depth 1 origin $SOURCE_REV
       git checkout FETCH_HEAD
+      mv composer.json composer.json.orig
+      jq ".version = \"$version\"" composer.json.orig > composer.json
       popd
 
       # generate arguments for package-lock translator