Update main.yaml

updated gitversion to v5.5.x

Author: Ralf1108

.github/workflows/main.yaml

@@ -17,7 +17,7 @@ jobs:
     - name: Install GitVersion
       uses: gittools/actions/gitversion/setup@v0.9.7
       with:
-          versionSpec: '5.2.x'
+          versionSpec: '5.5.x'
     - name: Use GitVersion
       id: gitversion # step id used as reference for output values
       uses: gittools/actions/gitversion/execute@v0.9.7