chore(dev-deps): bump @salesforce/cli-plugins-testkit

Bumps [@salesforce/cli-plugins-testkit](https://github.com/salesforcecli/cli-plugins-testkit) from 4.2.8 to 4.3.0.
- [Release notes](https://github.com/salesforcecli/cli-plugins-testkit/releases)
- [Changelog](https://github.com/salesforcecli/cli-plugins-testkit/blob/main/CHANGELOG.md)
- [Commits](salesforcecli/cli-plugins-testkit@4.2.8...4.3.0)

---
updated-dependencies:
- dependency-name: "@salesforce/cli-plugins-testkit"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -14,7 +14,7 @@
   "devDependencies": {
     "@oclif/plugin-command-snapshot": "^4.0.2",
     "@oclif/test": "^2.4.2",
-    "@salesforce/cli-plugins-testkit": "^4.0.1",
+    "@salesforce/cli-plugins-testkit": "^4.3.0",
     "@salesforce/dev-config": "^4.0.1",
     "@salesforce/dev-scripts": "^5.4.3",
     "@salesforce/plugin-command-reference": "^3.0.25",

yarn.lock

@@ -981,14 +981,14 @@
     mv "~2"
     safe-json-stringify "~1"
 
-"@salesforce/cli-plugins-testkit@^4.0.1":
-  version "4.2.8"
-  resolved "https://registry.yarnpkg.com/@salesforce/cli-plugins-testkit/-/cli-plugins-testkit-4.2.8.tgz#92cfd53e2e8c1c01fd189e24a49ba3b6610b7def"
-  integrity sha512-321rtZIArosBMl7XgyfYoQL8HTF0NjMt4bXWINqnseB+sIg3BdAExHJkGQvaLj0zMpecwSXtZYRSmU6ziuuNtg==
+"@salesforce/cli-plugins-testkit@^4.3.0":
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/@salesforce/cli-plugins-testkit/-/cli-plugins-testkit-4.3.0.tgz#253079d476569fbc4977c8100b3bf201b3e4a788"
+  integrity sha512-kW59i4muO49evQ76waWTfDUXpTfyBUQ0N1QIF4ZFB+aSAdVGG5N/oTMYz882ScS/SwB0XP0H119wT4cLoJI+Mw==
   dependencies:
-    "@salesforce/core" "^4.3.11"
-    "@salesforce/kit" "^3.0.6"
-    "@salesforce/ts-types" "^2.0.2"
+    "@salesforce/core" "^5.2.0"
+    "@salesforce/kit" "^3.0.9"
+    "@salesforce/ts-types" "^2.0.6"
     "@types/shelljs" "^0.8.12"
     debug "^4.3.1"
     jszip "^3.10.1"