(maint) Update GRM configuration

This commit makes a very small change to GRM configuration, to
add a space between the 2 emojis.  This doesn't cause problem
for GitHub, but it does in GitLab, so to keep things the same, let's
add the space.

Author: gep13

GitReleaseManager.yaml

@@ -47,4 +47,4 @@ close:
     - [Chocolatey.NuGet.Resolver NuGet Package](https://nuget.org/packages/Chocolatey.NuGet.Resolver/{milestone})
     - [Chocolatey.NuGet.Versioning NuGet Package](https://nuget.org/packages/Chocolatey.NuGet.Versioning/{milestone})
 
-    Your **[GitReleaseManager](https://github.com/GitTools/GitReleaseManager)** bot :package::rocket:
+    Your **[GitReleaseManager](https://github.com/GitTools/GitReleaseManager)** bot :package: :rocket: