Add dependency to bcmath php extension because the php-analytics-data library does not specify that properly

Thanks for reporting it! I was not aware that the php-analytics-data library does not specify their dependencies properly. As I found that https://github.com/googleapis/google-cloud-php/issues/2400

"For a litany of reasons, we do not want to add bcmath as a dependency in composer.json, but we should consider a better way to handle it."

So they are using 2 PHP Extensions but don't set dependencies for them (facepalm). And they are not even planning to set it in the future. I guess, I have to add that into this module's composer.json.

I updated the module' composer.json.

That was fast ! Thanks

Automatically closed - issue fixed for 2 weeks with no activity.