Bump dotnet-stryker from 4.3.0 to 4.4.1 (#46)

Bumps [dotnet-stryker](https://github.com/stryker-mutator/stryker-net) from 4.3.0 to 4.4.1.
- [Changelog](https://github.com/stryker-mutator/stryker-net/blob/master/CHANGELOG.md)
- [Commits](https://github.com/stryker-mutator/stryker-net/compare/dotnet-stryker@4.3.0...dotnet-stryker@4.4.1)

---
updated-dependencies:
- dependency-name: dotnet-stryker
  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": "4.3.0",
+      "version": "4.4.1",
       "commands": [
         "dotnet-stryker"
       ]