Fix path in dotnet nuget push command

Modified the 'publish-nightly.yaml' workflow file to correct the path in the dotnet nuget push command. This was done to ensure the correct path to the '.dotnet' directory. This change will ensure that the nuget packages and symbol packages will be pushed correctly.

.github/workflows/publish-nightly.yaml

@@ -24,8 +24,8 @@ jobs:
       - name: Publish nupkg
         env:
           MYGET_API_KEY: ${{ secrets.MYGET_API_KEY }}
-        run: .dotnet/dotnet nuget push **/*.nupkg --source https://www.myget.org/F/benchmarkdotnet/api/v3/index.json --api-key $MYGET_API_KEY --timeout 600
+        run: ./.dotnet/dotnet nuget push **/*.nupkg --source https://www.myget.org/F/benchmarkdotnet/api/v3/index.json --api-key $MYGET_API_KEY --timeout 600
       - name: Publish snupkg
         env:
           MYGET_API_KEY: ${{ secrets.MYGET_API_KEY }}
-        run: .dotnet/dotnet nuget push **/*.snupkg --source https://www.myget.org/F/benchmarkdotnet/api/v3/index.json --api-key $MYGET_API_KEY --timeout 600
+        run: ./.dotnet/dotnet nuget push **/*.snupkg --source https://www.myget.org/F/benchmarkdotnet/api/v3/index.json --api-key $MYGET_API_KEY --timeout 600