chore(deps-dev): bump vitest from 4.1.5 to 4.1.8 (#1815)

* chore(deps-dev): bump vitest from 4.1.5 to 4.1.8

Bumps [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) from 4.1.5 to 4.1.8.
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Changelog](https://github.com/vitest-dev/vitest/blob/main/docs/releases.md)
- [Commits](https://github.com/vitest-dev/vitest/commits/v4.1.8/packages/vitest)

---
updated-dependencies:
- dependency-name: vitest
  dependency-version: 4.1.8
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

* chore(deps-dev): bump vitest and coverage-v8 to 4.1.8

---------

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

package.json

@@ -21,7 +21,7 @@
     "@biomejs/biome": "2.4.16",
     "@smithy/property-provider": "^4.3.6",
     "@types/node": "^25.9.1",
-    "@vitest/coverage-v8": "4.1.5",
+    "@vitest/coverage-v8": "4.1.8",
     "aws-sdk-client-mock": "^4.1.0",
     "esbuild": "^0.28.0",
     "generate-license-file": "^4.2.1",
@@ -30,7 +30,7 @@
     "memfs": "^4.57.6",
     "standard-version": "^9.5.0",
     "typescript": "^6.0.3",
-    "vitest": "4.1.5"
+    "vitest": "4.1.8"
   },
   "dependencies": {
     "@actions/core": "^3.0.1",