explixitly set arg_separator for generateURI

We cannot rely on arg_separator.output to be set to it's default '&', therefore we explicitly set it here.

Signed-off-by: Daniel Ziegenberg <[email protected]>

src/OTP.php

@@ -98,7 +98,7 @@ protected function generateURI(string $type, array $options): string
         $this->hasColon($label) === false || throw new InvalidArgumentException('Label must not contain a colon.');
         $options = [...$options, ...$this->getParameters()];
         $this->filterOptions($options);
-        $params = str_replace(['+', '%7E'], ['%20', '~'], http_build_query($options));
+        $params = str_replace(['+', '%7E'], ['%20', '~'], http_build_query($options, arg_separator: '&'));
 
         return sprintf(
             'otpauth://%s/%s?%s',