chore: bump noir to 1.0.0-beta.23

[AztecBot]

Bumps the noir/noir-repo submodule (the pinned Noir compiler) from 1.0.0-beta.22 to 1.0.0-beta.23, plus the knock-on source changes required to build against beta.23.

• noir/noir-repo: c57152f9 (beta.22) → bd01f81e (v1.0.0-beta.23, noir-lang/noir#12862)

Knock-on changes (verified locally with the beta.23 nargo)

avm-transpiler — beta.23 made two ACIR tuple-struct fields private:

• BrilligOpcodeLocation / BrilligFunctionId: use ::new(…) / .index() accessors instead of tuple construction/field access.
• Cargo.lock: noir crates 1.0.0-beta.22 → 1.0.0-beta.23.

noir-projects/aztec-nr:

• oracle_testing.nr: beta.23 rejects splicing a comptime fn value into runtime code. The scalar test-value builders now store the lambda as source tokens with a pinned return type (mirroring the existing builder_expr path), with fully-qualified type/trait paths so they resolve at the generated test site.
• Removed redundant use std::panic; (now prelude) in dispatch.nr / events.nr.

noir-projects/noir-protocol-circuits (compiles clean with --deny-warnings across all 52 workspace members):

• BoundedVec::from_parts_unchecked → from_parts (deprecated in beta.23; the two are now identical). 42 call sites.
• types: silence unused packed in the empty-struct Packable::unpack derive branch; unused is_variable_length param in poseidon2.nr.
• rollup-lib: drop unused poseidon2_hash import.

Remaining (build-derived — will come from CI)

• yarn-project/aztec/src/{mainnet,testnet}_compatibility.test.ts: expected VK-tree root / protocol-contracts hash / genesis roots change with the compiler bump; the exact values come from the CI build.
• yarn-project/yarn.lock: noir-* package versions + @aztec/noir-noir_js file: hash refresh.
• noir-contracts may surface additional --deny-warnings lint knock-ons under a full contract build.

Note: requested independently of the private-branch merge — noir-protocol-circuits on next does not yet contain a noir-bignum library crate.