Bump nbgv from 3.6.146 to 3.7.115

Bumps [nbgv](/~https://github.com/dotnet/Nerdbank.GitVersioning) from 3.6.146 to 3.7.115.
- [Release notes](/~https://github.com/dotnet/Nerdbank.GitVersioning/releases)
- [Commits](/~https://github.com/dotnet/Nerdbank.GitVersioning/commits)

---
updated-dependencies:
- dependency-name: nbgv
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.config/dotnet-tools.json

@@ -17,7 +17,7 @@
       "rollForward": false
     },
     "nbgv": {
-      "version": "3.6.146",
+      "version": "3.7.115",
       "commands": [
         "nbgv"
       ],