deps: bump just-diff from 5.2.0 to 6.0.0 (#290)

Bumps [just-diff](https://github.com/angus-c/just) from 5.2.0 to 6.0.0.
- [Release notes](https://github.com/angus-c/just/releases)
- [Commits](https://github.com/angus-c/just/commits)

---
updated-dependencies:
- dependency-name: just-diff
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -48,7 +48,7 @@
     "ini": "^3.0.1",
     "json-parse-even-better-errors": "^3.0.0",
     "just-deep-map-values": "^1.1.1",
-    "just-diff": "^5.0.1",
+    "just-diff": "^6.0.0",
     "lodash": "^4.17.21",
     "npm-package-arg": "^10.0.0",
     "proc-log": "^3.0.0",