Sorted the array elements in ast_src.rs

[Raghav-Bell]

It fixes #161

[Raghav-Bell]

CI tests are failing locally for rustc 1.71.0 (8ede3aae2 2023-07-12) with clone on copy error
at the following thanks.

openqasm3_parser/crates/oq3_syntax/src/ptr.rs

Line 38 in 3396068

raw: self.raw.clone(),

openqasm3_parser/crates/oq3_syntax/src/ptr.rs

Line 85 in 3396068

self.raw.clone()

[jlapeyre]

Thanks for the contribution!

I'm still not 100% happy with the state of the file. I'd like to review the categories.
But, this PR, alphabetizing within the categories, is definitely an improvement.

Regarding the CI, I have run into the same problem sometimes. I have found it difficult to make a single version of the source compile and lint cleanly under both 1.75 and 1.71. I tried to use some conditional compilation. I didn't solve the problem, although I don't recall the details.