Merge branch 'maintenance/update-dependencies' into develop

Updated to the latest versions of NuGet and npm packages. Most critically, this includes updating to OnTopic 5.1.0 Beta 0, in preparation for the release of OnTopic Editor 5.1.0 Beta 0, which will be deployed for production testing in select implementations.

Author: JeremyCaney

OnTopic.Editor.AspNetCore.Attributes/OnTopic.Editor.AspNetCore.Attributes.csproj

@@ -13,7 +13,7 @@
 
   <ItemGroup>
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
-    <PackageReference Include="GitVersion.MsBuild" Version="5.6.7">
+    <PackageReference Include="GitVersion.MsBuild" Version="5.6.8">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
@@ -25,7 +25,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="OnTopic" Version="5.1.0-alpha.517" />
+    <PackageReference Include="OnTopic" Version="5.1.0-beta.0" />
   </ItemGroup>
 
   <ItemGroup>

OnTopic.Editor.AspNetCore.Attributes/package-lock.json

@@ -7,7 +7,7 @@
   },
   "license": "MIT",
   "devDependencies": {
-    "cssnano": "^4.1.10",
+    "cssnano": "^4.1.11",
     "gulp": "^4.0.2",
     "gulp-concat": "^2.6.1",
     "gulp-if": "^3.0.0",