Check ChainSpec consistency with upstream config.yaml (#9008)

Closes:

- https://github.com/sigp/lighthouse/issues/9002


  - Commit `config.yaml` for minimal and mainnet to `consensus/types/configs`. For now we omit any auto-downloading logic, to avoid the hassles of dealing with Github rate limits etc on CI. Unfortunately these files are NOT bundled inside the spec tests.
- Fix the values of `min_builder_withdrawability_delay` for minimal and mainnet. These discrepancies aren't caught by the current spec tests, because the spec tests are missing data: https://github.com/ethereum/consensus-specs/pull/5005. Will be fixed in the next release/when we update to nightly.
- Fix the blob schedule for `minimal`, which should be empty, NOT inherited from mainnet.
- Keep `SECONDS_PER_SLOT` for now because the Kurtosis tests fail upon their complete removal. We will be able to completely remove `SECONDS_PER_SLOT` soon.


Co-Authored-By: Michael Sproul <michael@sigmaprime.io>

beacon_node/beacon_chain/src/test_utils.rs

@@ -223,7 +223,7 @@ pub fn test_da_checker<E: EthSpec>(
     let slot_clock = TestingSlotClock::new(
         Slot::new(0),
         Duration::from_secs(0),
-        Duration::from_secs(spec.seconds_per_slot),
+        spec.get_slot_duration(),
     );
     let kzg = get_kzg(&spec);
     let ordered_custody_column_indices = generate_data_column_indices_rand_order::<E>();