fix: use explicit Stryker version 4.3.0 (#665)

* Update ci.yml

* Update build.yml

Author: vbreuss

.github/workflows/build.yml

@@ -231,7 +231,7 @@ jobs:
       - name: Install .NET Stryker
         shell: bash
         run: |
-          dotnet tool install dotnet-stryker --tool-path ../tools
+          dotnet tool install dotnet-stryker --tool-path ../tools --version 4.3.0
       - name: Analyze Testably.Abstractions.Testing
         env:
           STRYKER_DASHBOARD_API_KEY: ${{ secrets.STRYKER_DASHBOARD_API_KEY }}

.github/workflows/ci.yml

@@ -196,7 +196,7 @@ jobs:
       - name: Install .NET Stryker
         shell: bash
         run: |
-          dotnet tool install dotnet-stryker --tool-path ../tools
+          dotnet tool install dotnet-stryker --tool-path ../tools --version 4.3.0
       - name: Prepare Reports directory
         shell: bash
         run: |