Update cake monorepo to 5.1.0

Author: renovate[bot]

demo/frosting/build/Build.csproj

@@ -5,7 +5,7 @@
     <RunWorkingDirectory>$(MSBuildProjectDirectory)</RunWorkingDirectory>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Cake.Frosting" Version="5.0.0" />
+    <PackageReference Include="Cake.Frosting" Version="5.1.0" />
   </ItemGroup>
   <ItemGroup>
     <Reference Include="Cake.Gradle">

demo/script/.config/dotnet-tools.json

@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "cake.tool": {
-      "version": "5.0.0",
+      "version": "5.1.0",
       "commands": [
         "dotnet-cake"
       ]