Release 973.0.0

[FrederikBolding]

Explanation

Feature release for json-rpc-engine introducing assertExpectedHooks.

References

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them

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Note

Low Risk
Primarily version bumps and changelog updates; no functional code changes in this diff beyond updating dependency resolution.

Overview
Bumps the monorepo release to 973.0.0 and publishes @metamask/json-rpc-engine@10.5.0, documenting the new assertExpectedHooks export in the engine changelog.

Updates all in-repo consumers to depend on @metamask/json-rpc-engine@^10.5.0, refreshes related package changelogs, and updates yarn.lock accordingly.

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