Bump gittools/actions from 0.13.2 to 0.13.4

Bumps [gittools/actions](https://github.com/gittools/actions) from 0.13.2 to 0.13.4.
- [Release notes](https://github.com/gittools/actions/releases)
- [Commits](GitTools/actions@v0.13.2...v0.13.4)

---
updated-dependencies:
- dependency-name: gittools/actions
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/dotnet.yml

@@ -23,12 +23,12 @@ jobs:
         with:
           fetch-depth: 0
       - name: Install GitVersion
-        uses: gittools/actions/gitversion/setup@v0.13.2
+        uses: gittools/actions/gitversion/setup@v0.13.4
         with:
           versionSpec: '5.x'
       - name: Determine Version
         id:   gitversion
-        uses: gittools/actions/gitversion/execute@v0.13.2
+        uses: gittools/actions/gitversion/execute@v0.13.4
       - name: Display GitVersion outputs
         run: |
           echo "Major: ${{ steps.gitversion.outputs.major }}"