Another atempt at a nightly build

Author: stevencl840

.github/workflows/ci.yml

@@ -33,11 +33,13 @@ jobs:
       - name: Set nightly version
         if: github.event_name == 'schedule' || inputs.nightly
         run: |
-          $version = & dotnet minver --verbosity quiet
-          if ($version -match '^(\d+\.\d+\.\d+)') {
+          $gitVersion = git describe --tags --abbrev=0 2>$null
+          if ($gitVersion -match '^v?(\d+\.\d+\.\d+)') {
             $baseVersion = $matches[1]
-            echo "MINVER_VERSION_OVERRIDE=$baseVersion-octopus-nightly-${{ github.run_number }}" >> $env:GITHUB_ENV
+          } else {
+            $baseVersion = "0.32.0"
           }
+          echo "MINVER_VERSION_OVERRIDE=$baseVersion-octopus-nightly-${{ github.run_number }}" >> $env:GITHUB_ENV
         shell: pwsh
       - name: Build
         run: dotnet build LibGit2Sharp.sln --configuration Release