Fix aliased_package_name check

The package _name_ only contains `@npm:` if it's actually aliased, and
looks like `my-fetch-factory@npm:fetch-factory`, the _requirement_ will
have an additional `@npm:<version>` in yarn berry, but this is not
present in the package name

Author: jurre

npm_and_yarn/lib/dependabot/npm_and_yarn/file_parser.rb

@@ -155,7 +155,7 @@ def git_url_with_semver?(requirement)
       end
 
       def aliased_package_name?(name)
-        name.match?(/@npm:(.+@(?!npm))/)
+        name.include?("@npm:")
       end
 
       def workspace_package_names