Merge pull request #4426 from ethereum-optimism/clabby/ctb/bytes-lib-tests

feat(ctb): Add tests for `Bytes` library

.changeset/shy-impalas-fetch.md

+---
+'@eth-optimism/contracts-bedrock': patch
+---
+
+Add tests for the `Bytes` library

packages/contracts-bedrock/.gas-snapshot

@@ -9,6 +9,13 @@ GasBenchMark_L2OutputOracle:test_proposeL2Output_benchmark() (gas: 88513)
 GasBenchMark_OptimismPortal:test_depositTransaction_benchmark() (gas: 74998)
 GasBenchMark_OptimismPortal:test_depositTransaction_benchmark_1() (gas: 36156)
 GasBenchMark_OptimismPortal:test_proveWithdrawalTransaction_benchmark() (gas: 167240)
+Bytes_Test:test_slice_acrossMultipleWords_works() (gas: 9391)
+Bytes_Test:test_slice_acrossWords_works() (gas: 1397)
+Bytes_Test:test_slice_fromNonZeroIdx_works() (gas: 17218)
+Bytes_Test:test_slice_fromZeroIdx_works() (gas: 20826)
+Bytes_Test:test_toNibbles_expectedResult128Bytes_works() (gas: 129885)
+Bytes_Test:test_toNibbles_expectedResult5Bytes_works() (gas: 6132)
+Bytes_Test:test_toNibbles_zeroLengthInput_works() (gas: 966)
 CrossDomainMessenger_BaseGas_Test:test_baseGas_succeeds() (gas: 20098)
 CrossDomainOwnableThroughPortal_Test:test_depositTransaction_crossDomainOwner_succeeds() (gas: 61806)
 CrossDomainOwnable_Test:test_onlyOwner_notOwner_reverts() (gas: 10530)