Fix bug due to swiftlint osx jobs ci

[mcbarton]

@vgvassilev @maximusron can one of you merge this into the main to fix the issue with osx x86 jobs? I know this fix works as I'm currently using it in my PR on treating all warnings as errors.

[aaronj0]

@mcbarton will do once the checks are done

[aaronj0]

@mcbarton we need the cache from PR #281 since LLVM has to be built after valgrind. I will rerun these jobs to avoid both of them building a cache at the same time

[mcbarton]

@maximusron The cache from both PRs can't clash since there isn't a Ubuntu cache on the main anymore. One PR cannot pickup the cache from another PR. This PR also has nothing to do with caching. It is just removing a package which causes issues on osx. Unsure why the ci run had to be cancelled.

[aaronj0]

Yes, I cleared the main cache for the same reason I mentioned above. That's why I would prefer that this PR doesn't also build a cache at the same time. Once the new cache is built, this PR can just use that and make things more simple (instead of having to clear this cache too once this is done).

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.31%. Comparing base (114b3ff) to head (1e928f8).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #291   +/-   ##
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  Coverage   54.31%   54.31%           
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  Files           8        8           
  Lines        2957     2957           
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  Hits         1606     1606           
  Misses       1351     1351