Bump dotnet-stryker from 4.14.2 to 4.15.0 (#32)

---
updated-dependencies:
- dependency-name: dotnet-stryker
  dependency-version: 4.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.config/dotnet-tools.json

@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "dotnet-stryker": {
-      "version": "4.14.2",
+      "version": "4.15.0",
       "commands": [
         "dotnet-stryker"
       ],