Update zoekt upstream

Ravi Kumarrequested to merge
update-zoekt into main

What does this MR do and why?

Update zoekt upstream to e7f0a1a349e1. https://github.com/sourcegraph/zoekt/commit/e7f0a1a349e11e1e834de840312e23716aeb0b95 I could not update to the latest because zoekt has moved a lot of packages to internal. Due to this I was getting a lot of failures https://github.com/sourcegraph/zoekt/commit/a634b6cd40f86ab469106b0a6feb6151d9aa038f

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

Edited by Ravi Kumar

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