Fix boolean query parameters

[pavog]

The client sets the boolean format for query parameters to strings (true/false) on its configuration, but the generated ObjectSerializer reads this format from Configuration::getDefaultConfiguration().

See ObjectSerializer->convertBoolToQueryStringFormat():

    /**
     * Convert boolean value to format for query string.
     *
     * @param bool $value Boolean value
     *
     * @return int|string Boolean value in format
     */
    public static function convertBoolToQueryStringFormat(bool $value): int|string
    {
        if (Configuration::BOOLEAN_FORMAT_STRING == Configuration::getDefaultConfiguration()->getBooleanFormatForQueryString()) {
            return $value ? 'true' : 'false';
        }

        return (int) $value;
    }

When a custom configuration is passed to the client, boolean query parameters are therefore sent as 1/0.

The CurseForge API ignores these values. For example getCategories(432, null, true) sent classesOnly=1 and returned all 148 categories instead of the 9 classes. This affects every boolean parameter, e.g. classesOnly, clientCompatible and includeAll.

setConfiguration() now also sets the format on the default configuration.