[deps]: Update actions/setup-dotnet action to v4 (#156)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/build.yml

@@ -19,7 +19,7 @@ jobs:
         uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
 
       - name: Set up .NET
-        uses: actions/setup-dotnet@3447fd6a9f9e57506b15f895c5b76d3b197dc7c2 # v3.2.0
+        uses: actions/setup-dotnet@4d6c8fcf3c8f7a60068d26b594648e99df24cee3 # v4.0.0
 
       - name: Publish project
         working-directory: src/KeyConnector

.github/workflows/test.yml

@@ -20,7 +20,7 @@ jobs:
         uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
 
       - name: Set up .NET
-        uses: actions/setup-dotnet@3447fd6a9f9e57506b15f895c5b76d3b197dc7c2 # v3.2.0
+        uses: actions/setup-dotnet@4d6c8fcf3c8f7a60068d26b594648e99df24cee3 # v4.0.0
 
       - name: Test solution
         run: dotnet test --configuration Debug --logger "trx;LogFileName=test-results.trx" /p:CoverletOutputFormatter="cobertura" --collect:"XPlat Code Coverage"