fix(ctb): type definition in ERC721Bridge

[0xfuturistic]

context copied from https://github.com/ethereum-optimism/client-pod/issues/601

Found by @tynes and discussed in slack.

See this line, the type is StandardBridge but it shouldn't be StandardBridge because the erc721 bridge never interacts with the erc20 bridge, it should be ERC721Bridge.

This does not impact functionality, and just affects integrators calling the otherBridge getter. Currently they must either cast the returned value or use their own interface which returns the correct value

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 39.26%. Comparing base (aed9ee1) to head (12178cb).
Report is 8 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff              @@
##           develop   #10755       +/-   ##
============================================
- Coverage    54.65%   39.26%   -15.39%     
============================================
  Files           37       27       -10     
  Lines         2944     1821     -1123     
  Branches       415      415               
============================================
- Hits          1609      715      -894     
+ Misses        1303     1106      -197     
+ Partials        32        0       -32     

Flag	Coverage Δ
cannon-go-tests	?
chain-mon-tests	27.14% <ø> (ø)
sdk-tests	40.27% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

see 10 files with indirect coverage changes

[tynes]

This is great and we can merge it if we bump the semver for the L1 and L2 bridges with a patch + beta, so X.Y.Z-beta.1 where Z increments

[semgrep-app]

Semgrep found 1 sol-style-return-arg-fmt finding:

• packages/contracts-bedrock/src/cannon/MIPS.sol
  • L809 - Triage

Named return arguments to functions must be appended with an underscore (_)

_{Ignore this finding from sol-style-return-arg-fmt.}

Semgrep found 3 sol-style-malformed-revert findings:

• packages/contracts-bedrock/src/cannon/MIPS.sol
  • L959 - Triage
  • L1054 - Triage
  • L1057 - Triage

Malformed revert statement style.

_{Ignore this finding from sol-style-malformed-revert.}

Semgrep found 1 sol-style-input-arg-fmt finding:

• packages/contracts-bedrock/src/cannon/MIPS.sol
  • L809 - Triage

Inputs to functions must be prepended with an underscore (_)

_{Ignore this finding from sol-style-input-arg-fmt.}

Semgrep found 2 invalid-usage-of-modified-variable findings:

• op-conductor/conductor/service.go
  • L704-721 - Triage
  • L704-721 - Triage

Variable unsafeInNode is likely modified and later used on error. In some cases this could result in panics due to a nil dereference

_{Ignore this finding from invalid-usage-of-modified-variable.}