fix(deps): update dependency @ethersproject/constants to ^5.8.0

[metamask-ci]

This PR contains the following updates:

Package	Change	Age	Confidence
@ethersproject/constants (source)	^5.7.0 → ^5.8.0

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Note

Low Risk
Routine dependency bump with lockfile and changelog only; no logic or API changes in bridge-controller.

Overview
Updates @metamask/bridge-controller to depend on @ethersproject/constants ^5.8.0 (from ^5.7.0), with the matching yarn.lock resolution and an [Unreleased] changelog entry.

No source changes—existing imports (e.g. AddressZero) stay the same; this aligns the constants package with other recent @ethersproject bumps in the package (such as bignumber).

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