fix(contracts): OZ-L02 Utilizing Deprecated Function From Library

[zimpha]

Purpose or design rationale of this PR

This PR partially fixed the issue reported by Openzepplin (L-02 Utilizing Deprecated Function From Library) during ScrollOwner and Rate Limiter audit. The following are the details:

The TokenRateLimiter contract is setting up its default admin role in the constructor using the _setupRole function. However, this function has been deprecated.

To avoid potential future incompatibilities with OpenZeppelin's contracts library, consider using the _grantRole method instead.

PR title

Your PR title must follow conventional commits (as we are doing squash merge for each PR), so it must start with one of the following types:

• fix: A bug fix

Deployment tag versioning

Has tag in common/version.go been updated or have you added bump-version tag to this PR?

• No, this PR doesn't involve a new deployment, git tag, docker image tag
• Yes

Breaking change label

Does this PR have the breaking-change label?

• No, this PR is not a breaking change
• Yes

[github-actions]

LCOV of commit 0861e03 during Contracts #1375

Summary coverage rate:
  lines......: 52.6% (992 of 1885 lines)
  functions..: 67.3% (222 of 330 functions)
  branches...: no data found

Files changed coverage rate: n/a