Upgrade reth 1.9.3 → 1.11.3 (#927)

## 📝 Summary

Bumps reth `27a8c0f` → `d6324d6` (1.11.3) and the coupled major bumps:
revm 31→34,
alloy-evm 0.23→0.27, alloy 1.x→1.6, alloy-trie 0.8→0.9,
revm-inspectors→0.34.
Adapts rbuilder to the new reth/revm APIs and removes the `unsafe` that
reth's
trait-object `Sync` change would otherwise force.

### Dependencies
- `reth-*` → rev `d6324d6`; revm 34, revm-inspectors 0.34.2, alloy-evm
0.27.2,
  alloy 1.6.3, alloy-primitives 1.5.6, alloy-trie 0.9.4.
- Pin `time = 0.3.47` (0.3.48 has an E0119 coherence bug); MSRV 1.85 →
1.88.
- `reth-tasks` in rbuilder-utils repointed to the same rev (was stale).

### Key adaptations

**Provider Send/Sync .** reth 1.11 dropped `Sync` from
`StateProviderBox`
(`Box<dyn StateProvider + Send>`). The unit shared across
building threads is now `StateProviderSource` (factory + parent hash,
`Send+Sync+Clone`);
each consumer opens its own provider on demand. `CachedDB` holds an
already-open provider;
the block-building helper clones itself via an explicit, fallible
`try_clone` that reopens
the provider. This is the reth way.

**revm 34.** `Database::Error` is now `EvmDatabaseError<ProviderError>`;
`CfgEnv::with_spec` → `with_spec_and_mainnet_gas_params` (sets Osaka's
per-tx gas cap,
EIP-7825). `order_commit` maps the new error shape.

**Root hash.** `OverlayStateProviderFactory::new(factory,
ChangesetCache)`,
`ParallelStateRoot::new(.., Runtime)`; provider bounds gain
`ChangeSetReader + StorageChangeSetReader + DBProvider +
StorageSettingsCache`.
Transparently supports reth storage **v1 and v2** (reth reads the mode
from the DB;
rbuilder only forwards the bound).

**Provider construction.** `ProviderFactory::new` now takes a
RocksDBProvider + Runtime
and returns `Result`; it reads storage settings on open. Adds a
process-wide task runtime.

**eth-sparse-mpt.** Unified onto nybbles 0.4 (matching alloy-trie 0.9 /
reth): the crate's
`Nibbles` is now the same packed type reth's trie nodes use, so the
conversion shims between
the two representations are gone — encode/decode pass `Nibbles` straight
into alloy-trie node
types, removing per-node conversions in the root-hash hot path. Single
nybbles version
across the workspace.

🤖 Generated with [Claude Code](https://claude.com/claude-code) with me
kicking his ass to get it right....

## 💡 Motivation and Context

I like prime numbers so I switched 9 for 11.

## ✅ I have completed the following steps:

* [X] Run `make lint`
* [X] Run `make test`
* [ ] Added tests (if applicable)

Author: ZanCorDX

.github/workflows/checks.yaml

@@ -87,7 +87,8 @@ jobs:
       - name: Download builder playground
         uses: flashbots/flashbots-toolchain@v0.1
         with:
-          builder-playground: v0.3.1
+          # v0.3.3+ supports custom recipes with a `release` override (used to pin reth to 1.11.x).
+          builder-playground: v0.3.3
 
       # https://github.com/swatinem/rust-cache
       - name: Run Swatinem/rust-cache@v2
@@ -112,7 +113,7 @@ jobs:
 
       - name: Run the playground
         run: |
-          builder-playground start l1 --use-native-reth > /tmp/playground.log 2>&1 &
+          builder-playground start crates/rbuilder/src/integration/test_data/playground.yaml > /tmp/playground.log 2>&1 &
           PLAYGROUND_PID=$!
           echo "Waiting for all services to be healthy..."
           timeout=60  # 1 minutes timeout