updated podfile to target v8 of the sdk - #235

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@cla-bot check

Thank you for your pull request and welcome to our community. We could not parse the GitHub identity of the following contributors: Stefan Nedelchev.
This is most likely caused by a git client misconfiguration; please make sure to:

1. check if your git client is configured with an email to sign commits git config --list | grep email
2. If not, set it up using git config --global user.email email@example.com
3. Make sure that the git commit email is configured in your GitHub account settings, see https://github.com/settings/emails

The cla-bot has been summoned, and re-checked this pull request!