fix: seahorse init failing due to outdated ahash error

[mikemaccana]

As of 2024 01 22.seahorse build would fail with:

   Compiling ahash v0.7.7
   Compiling rustversion v1.0.14
error[E0658]: use of unstable library feature 'build_hasher_simple_hash_one'
   --> src/random_state.rs:463:5
    |
463 | /     fn hash_one<T: Hash>(&self, x: T) -> u64 {
464 | |         RandomState::hash_one(self, x)
465 | |     }
    | |_____^
    |
    = note: see issue #86161 <https://github.com/rust-lang/rust/issues/86161> for more information
    = help: add `#![feature(build_hasher_simple_hash_one)]` to the crate attributes to enable

For more information about this error, try `rustc --explain E0658`.
error: could not compile `ahash` due to previous error
warning: build failed, waiting for other jobs to finish...

Bumping ahash in ./programs/programname/Cargo.toml fixes it. Eg:

[dependencies]
anchor-lang = "0.29.0"
anchor-spl = "0.29.0"
pyth-sdk-solana = "0.9.0"
ahash = "=0.8.4"

This PR should ensure that's done by default. Please review it carefully, I am just getting started with Rust.

[mikemaccana]

Nevermind, this is the wrong repo, see #105

[mikemaccana]

Dupe of https://github.com/solana-developers/seahorse/pull/11 and this repo should be marked as deprecated.