contracts-bedrock: fuzz optimism portal

Migrate away from using magic variables and towards fuzzing in the
`OptimismPortal` instead. This improves test coverage while moving
away from an antipattern which is defining variables far away from
where they are used. Its good to fuzz in place of this or have
explicit visibility into what variables are used.

packages/contracts-bedrock/.gas-snapshot

@@ -485,26 +485,17 @@ OptimismPortal_FinalizeWithdrawal_Test:test_proveWithdrawalTransaction_replayPro
 OptimismPortal_FinalizeWithdrawal_Test:test_proveWithdrawalTransaction_replayProveChangedOutputRoot_succeeds() (gas: 227596)
 OptimismPortal_FinalizeWithdrawal_Test:test_proveWithdrawalTransaction_replayProve_reverts() (gas: 166699)
 OptimismPortal_FinalizeWithdrawal_Test:test_proveWithdrawalTransaction_validWithdrawalProof_succeeds() (gas: 154430)
-OptimismPortal_Test:test_constructor_succeeds() (gas: 28164)
-OptimismPortal_Test:test_depositTransaction_contractCreation_reverts() (gas: 14292)
-OptimismPortal_Test:test_depositTransaction_createWithZeroValueForContract_succeeds() (gas: 76814)
-OptimismPortal_Test:test_depositTransaction_createWithZeroValueForEOA_succeeds() (gas: 77115)
-OptimismPortal_Test:test_depositTransaction_largeData_reverts() (gas: 512149)
-OptimismPortal_Test:test_depositTransaction_noValueContract_succeeds() (gas: 76767)
-OptimismPortal_Test:test_depositTransaction_noValueEOA_succeeds() (gas: 77112)
+OptimismPortal_Test:test_constructor_succeeds() (gas: 28208)
+OptimismPortal_Test:test_depositTransaction_contractCreation_reverts() (gas: 14260)
+OptimismPortal_Test:test_depositTransaction_largeData_reverts() (gas: 512156)
 OptimismPortal_Test:test_depositTransaction_smallGasLimit_reverts() (gas: 14528)
-OptimismPortal_Test:test_depositTransaction_withEthValueAndContractContractCreation_succeeds() (gas: 83773)
-OptimismPortal_Test:test_depositTransaction_withEthValueAndEOAContractCreation_succeeds() (gas: 75929)
-OptimismPortal_Test:test_depositTransaction_withEthValueFromContract_succeeds() (gas: 83476)
-OptimismPortal_Test:test_depositTransaction_withEthValueFromEOA_succeeds() (gas: 84069)
-OptimismPortal_Test:test_isOutputFinalized_succeeds() (gas: 127617)
-OptimismPortal_Test:test_minimumGasLimit_succeeds() (gas: 17430)
+OptimismPortal_Test:test_isOutputFinalized_succeeds() (gas: 127638)
+OptimismPortal_Test:test_minimumGasLimit_succeeds() (gas: 17641)
 OptimismPortal_Test:test_pause_onlyGuardian_reverts() (gas: 24487)
-OptimismPortal_Test:test_pause_succeeds() (gas: 27344)
+OptimismPortal_Test:test_pause_succeeds() (gas: 27323)
 OptimismPortal_Test:test_receive_succeeds() (gas: 127564)
-OptimismPortal_Test:test_simple_isOutputFinalized_succeeds() (gas: 35651)
-OptimismPortal_Test:test_unpause_onlyGuardian_reverts() (gas: 31514)
-OptimismPortal_Test:test_unpause_succeeds() (gas: 27451)
+OptimismPortal_Test:test_unpause_onlyGuardian_reverts() (gas: 31558)
+OptimismPortal_Test:test_unpause_succeeds() (gas: 27407)
 OptimistAllowlistTest:test_constructor_succeeds() (gas: 16407)
 OptimistAllowlistTest:test_isAllowedToMint_fromAllowlistAttestorWithFalsyValue_fails() (gas: 49650)
 OptimistAllowlistTest:test_isAllowedToMint_fromAllowlistAttestor_succeeds() (gas: 49254)