Unintended exit when version check has error (only when using binaries)

[jvogt]

If version checker fails with error (IE if can't reach github to check for version), an exception is raised (and caught), and an error is logged. This has the unintended behavior of exiting in a pyinstaller-produced binary, but when running from source, it continues with the rest of the script (intended behavior).

To reproduce:

1. Edit the upgrade_url to a non-working URL in https://github.com/lacework/extensible-reporting/blob/v1.0.2/modules/utils.py#L117
2. Build a new binary
3. Execute it