Fix missing Git commit

Add the Git commit SHA to the `.nuspec` for Swashbuckle.AspNetCore.

Author: martincostello

src/Swashbuckle.AspNetCore/Swashbuckle.AspNetCore.csproj

@@ -25,6 +25,7 @@
         id=$(PackageId);
         licenseExpression=$(PackageLicenseExpression);
         projectUrl=$(PackageProjectUrl);
+        repositoryCommit=$(GITHUB_SHA);
         repositoryType=$(RepositoryType);
         repositoryUrl=$(RepositoryUrl);
         tags=$(PackageTags.Replace(';', ' '));

src/Swashbuckle.AspNetCore/Swashbuckle.AspNetCore.nuspec

@@ -11,7 +11,7 @@
     <readme>docs\package-readme.md</readme>
     <description>$description$</description>
     <tags>$tags$</tags>
-    <repository type="$repositoryType$" url="$repositoryUrl$" />
+    <repository type="$repositoryType$" url="$repositoryUrl$" commit="$repositoryCommit$" />
     <dependencies>
       <group targetFramework=".NETCoreApp,Version=v8.0">
         <dependency id="Swashbuckle.AspNetCore.Swagger" version="$version$" exclude="Build,Analyzers" />