Replace OnceLock with LazyLock, update MSRV to 1.80

[Rafferty97]

Which issue does this PR close?

Closes #11687.

What changes are included in this PR?

• Updated MSRV to 1.80 where necessary, which will need review and may warrant holding off merging this for now
• Replaces all uses of OnceLock with LazyLock
• In many cases, the associated getter function for a lazy static was removed and call sites updated to access the static directly
• In a few macros that made use of OnceLock, I fixed the doc comments so that tokens were properly expanded into the text

Are these changes tested?

I haven't checked that all the modified code is covered by tests, though the changes are pretty trivial. I will do so soon when time permits.

Are there any user-facing changes?

No, only implementation details have been changed.

[alamb]

Thanks @Rafferty97 🙏

The DataFusion MSRV policy is to support rust versions for at least 6 months -- https://github.com/apache/datafusion?tab=readme-ov-file#rust-version-compatibility-policy

Thus as you say in the description, we probably need to hold off on this update until January 2025 as 1.80 was released in July 2024:

https://github.com/rust-lang/rust/blob/master/RELEASES.md#version-1800-2024-07-25

[Rafferty97]

@alamb No worries! Would you like me to extract the doc comment improvements into a separate PR, with a new associated issue? I could also scan the codebase for other similar instances of "broken" doc comments created by macro_rules invocations?

[Rafferty97]

I have extracted the doc comments work into its own issue and PR. Assuming that gets merged, I'll rebase to remove those changes from this PR (even though it won't be merged for some time).

[alamb]

We have updated MSRV to 1.78 -- I think we can do this task again