Update Rust crate scc to v3

[hash-worker]

This PR contains the following updates:

Package	Type	Update	Change
scc	workspace.dependencies	major	2.4.0 -> 3.0.0

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 61.21%. Comparing base (7b93c22) to head (5333b70).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8131   +/-   ##
=======================================
  Coverage   61.21%   61.21%           
=======================================
  Files        1279     1279           
  Lines      126055   126055           
  Branches     5375     5375           
=======================================
  Hits        77164    77164           
  Misses      48003    48003           
  Partials      888      888           

Flag	Coverage Δ
apps.hash-ai-worker-ts	1.40% <ø> (ø)
apps.hash-api	0.00% <ø> (ø)
blockprotocol.type-system	40.84% <ø> (ø)
local.claude-hooks	0.00% <ø> (ø)
local.harpc-client	51.24% <ø> (ø)
local.hash-graph-sdk	7.78% <ø> (ø)
local.hash-isomorphic-utils	0.00% <ø> (ø)
rust.antsi	0.00% <ø> (ø)
rust.error-stack	90.88% <ø> (ø)
rust.harpc-codec	84.70% <ø> (ø)
rust.harpc-types	0.00% <ø> (ø)
rust.harpc-wire-protocol	92.23% <ø> (ø)
rust.hash-codec	72.76% <ø> (ø)
rust.hash-graph-authorization	62.34% <ø> (ø)
rust.hash-graph-postgres-store	27.20% <ø> (ø)
rust.hash-graph-store	37.86% <ø> (ø)
rust.hash-graph-temporal-versioning	47.95% <ø> (ø)
rust.hash-graph-types	0.00% <ø> (ø)
rust.hash-graph-validation	83.45% <ø> (ø)
rust.hashql-ast	87.25% <ø> (ø)
rust.hashql-compiletest	29.69% <ø> (ø)
rust.hashql-core	81.69% <ø> (ø)
rust.hashql-diagnostics	72.43% <ø> (ø)
rust.hashql-eval	69.13% <ø> (ø)
rust.hashql-hir	89.11% <ø> (ø)
rust.hashql-mir	90.42% <ø> (ø)
rust.hashql-syntax-jexpr	94.05% <ø> (ø)

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[cursor]

PR Summary

Medium Risk
Major-version dependency bump can introduce API/behavior changes in any crates using scc, even though no application code changes are included.

Overview
Bumps the workspace Rust dependency scc from 2.4.0 to 3.0.0 in Cargo.toml.

Regenerates Cargo.lock, pulling in scc v3’s newer resolved versions and transitive updates (including adding the new saa crate and updating sdd).

^{Written by Cursor Bugbot for commit 5333b70. This will update automatically on new commits. Configure here.}