VS Code: Patch Release 1.22.4

[abeatrix]

CLOSE https://linear.app/sourcegraph/issue/CODY-2506/cut-vs-code-release-for-sonnet-35

Just a version bump after the patch release in https://github.com/sourcegraph/cody/pull/4632

Test plan

• [x] package.json
• [x] CHANGELOG