Update gittools/actions action to v4

Author: renovate[bot]

.github/workflows/ci.yml

@@ -17,13 +17,13 @@ jobs:
 
     # Use GitVersion
     - name: Install GitVersion
-      uses: gittools/actions/gitversion/setup@v3.2.1
+      uses: gittools/actions/gitversion/setup@v4.1.0
       with:
         versionSpec: '6.0.x'
 
     - name: Determine Version
       id: gitversion
-      uses: gittools/actions/gitversion/execute@v3.2.1
+      uses: gittools/actions/gitversion/execute@v4.1.0
 
     - name: Setup .NET
       uses: actions/setup-dotnet@v4

.github/workflows/tag.yml

@@ -44,13 +44,13 @@ jobs:
 
     # Use GitVersion
     - name: Install GitVersion
-      uses: gittools/actions/gitversion/setup@v3.2.1
+      uses: gittools/actions/gitversion/setup@v4.1.0
       with:
         versionSpec: '6.0.x'
 
     - name: Determine Version
       id: gitversion
-      uses: gittools/actions/gitversion/execute@v3.2.1
+      uses: gittools/actions/gitversion/execute@v4.1.0
 
     - name: Publish NuGet Package
       run: |