Revert lz4 bump

[mx-psi]

What does this PR do?

Revert lz4 bump

Motivation

python-lz4/python-lz4#244, which breaks our Omnibus build

Additional Notes

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• PR title must be written as a CHANGELOG entry (see why)
• Files changes must correspond to the primary purpose of the PR as described in the title (small unrelated changes should have their own PR)
• PR must have changelog/ and integration/ labels attached

[codecov]

Codecov Report

Merging #11749 (c3db876) into master (7dd8265) will not change coverage.
The diff coverage is n/a.

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clickhouse	95.63% <ø> (ø)

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[mx-psi]

So that things are cross-linked, the root cause of the build issue we had with lz4 turned out to be an Omnibus bug: chef/omnibus/issues/1066

[ofek]

Are we fixing in our fork?

[mx-psi]

Are we fixing in our fork?

I created AP-1659 on JIRA to track this. I have a good idea of what the fix would entail, but if this is not urgently needed I would rather wait until we have some answer from upstream.