Pin JuliaFormatter to v1.0.62

[rsenne]

This PR pins JuliaFormatter to 1.0.62. This has a few advantages.

1. v1.0.62 is considered stable by the package and so is reliable in comparison to v2 where format changes are not unexpected minor version to minor version
2. We can reintroduce testing w/ JET as that package loosened its JuliaSyntax comapt to v1 (i.e., no more MethodTableError)
3. We can get rid of the format on PR stuff that imo just was extremely noisy

Resolves #94

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[JoseKling]

Great. Thanks