refactor: align PointerTo functions

[JonathanOppenheimer]

Why this should be merged

This PR consolidates pointer creation helpers across the codebase by replacing the type-specific pointer calls such as utils.NewUint64 or newTrue() with a single generic utils.PointerTo[T any] function. It also makes types more clear when required, or ensures lint will fail on unnecessary type casting.

See ava-labs/coreth#1263 (comment) for the original context.

Closes #4567

How this works

• Adds generic utils.PointerTo[T any](x T) *T to the shared graft/evm/utils module
• Replaces all old typed pointer calls with new PointerTo calls
• Removes utilstest.PointerTo in favor of the utils version
• Removes one-off pointer helpers (newTrue()) and replaces with utils.PointerTo

How this was tested

CI

Need to be documented in RELEASES.md?

No

[alarso16]

Seems overall helpful. There's nothing "evm" about this function, so does it make sense to drop somewhere in avalanchego/utils?

[JonathanOppenheimer]

@alarso16 I had to retype some more things than just the function to get your suggestion working. I think it's a net improvement over all though now, and it's easy reviewable by commit.

[alarso16]

Btw you should just be able to rebase to fix the conflicts

[JonathanOppenheimer]

Btw you should just be able to rebase to fix the conflicts

I'll just merge in it's easier

[alarso16]

Why is this updated?

[JonathanOppenheimer]

Running go mod tidy automatically updates it.

[alarso16]

Not totally sure why rpc is updated everywhere (definitely out of scope), but doesn't seem like the end of the world

[JonathanOppenheimer]

Not totally sure why rpc is updated everywhere (definitely out of scope), but doesn't seem like the end of the world

Fixed.