Bump gitversion.tool from 6.5.1 to 6.6.0 (#58)

---
updated-dependencies:
- dependency-name: gitversion.tool
  dependency-version: 6.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.config/dotnet-tools.json

@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "gitversion.tool": {
-      "version": "6.5.1",
+      "version": "6.6.0",
       "commands": [
         "dotnet-gitversion"
       ],