Revert gologin version change

Created by: varsanojidan

Resolves: https://github.com/sourcegraph/customer/issues/1005

@mollylogue and I found that the following commits: https://github.com/sourcegraph/sourcegraph/commit/e92627d195d07a9286c1ab2218d77a07d8a3865a, https://github.com/sourcegraph/sourcegraph/commit/865d0efe71a4424998a76c4b6f6812d6803697df, have unintentionally caused issues when trying to use OAuth login with a Github code host.

This PR seeks to unblock customers by reverting the change to the gologin library that is causing the OAuth issues we are seeing in the issue linked above. We would address re-updating the gologin library to a more current version in a separate issue.

Test plan

Previous to this change, testing locally had a broken OAuth flow (identical to the linked issue), post fix the OAuth flow behaves as expected.