Fix GitHub Audit Logs API URL Handling and Update Solution to Version 3.1.1 for GitHub solution

[v-kasghosh]

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Change(s):

• Updated PollerConfig for GitHub Audit Log CCF connector
• Added new package 3.1.1.zip and updated mainTemplate.json accordingly.

Reason for Change(s):

• To ensure the data connector connects properly when an enterprise GitHub URL is provided instead of the API enterprise URL.

Version Updated:

• 3.1.1

Testing Completed:

• Tested