chore(deps): update dotnet monorepo to v9

| datasource | package                                               | from  | to    |
| ---------- | ----------------------------------------------------- | ----- | ----- |
| nuget      | Microsoft.Extensions.DependencyInjection.Abstractions | 7.0.0 | 9.0.0 |
| nuget      | Microsoft.Extensions.FileSystemGlobbing               | 7.0.0 | 9.0.0 |
| nuget      | Microsoft.Extensions.Hosting                          | 7.0.1 | 9.0.0 |
| docker     | mcr.microsoft.com/dotnet/sdk                          | 7.0   | 9.0   |

BranchValidator/BranchValidator.csproj

@@ -38,9 +38,9 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="7.0.0" />
-    <PackageReference Include="Microsoft.Extensions.FileSystemGlobbing" Version="7.0.0" />
-    <PackageReference Include="Microsoft.Extensions.Hosting" Version="7.0.1" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="9.0.0" />
+    <PackageReference Include="Microsoft.Extensions.FileSystemGlobbing" Version="9.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.0" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.1.118">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>

Dockerfile

@@ -1,5 +1,5 @@
 # Set the base image as the .NET 7.0 SDK (this includes the runtime)
-FROM mcr.microsoft.com/dotnet/sdk:7.0 as build-env
+FROM mcr.microsoft.com/dotnet/sdk:9.0 as build-env
 
 # Copy everything and publish the release (publish implicitly restores and builds)
 COPY . ./
@@ -14,6 +14,6 @@ LABEL homepage="https://github.com/KinsonDigital/BranchValidator"
 LABEL com.github.actions.name="Branch Validator"
 
 # Relayer the .NET SDK, anew with the build output
-FROM mcr.microsoft.com/dotnet/sdk:7.0
+FROM mcr.microsoft.com/dotnet/sdk:9.0
 COPY --from=build-env /out .
 ENTRYPOINT [ "dotnet", "/BranchValidator.dll" ]

Tooling/ScriptGenerator/ScriptGenerator.csproj

@@ -17,7 +17,7 @@
         <PrivateAssets>all</PrivateAssets>
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       </PackageReference>
-      <PackageReference Include="Microsoft.Extensions.Hosting" Version="7.0.1" />
+      <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.0" />
       <PackageReference Include="StyleCop.Analyzers" Version="1.1.118">
         <PrivateAssets>all</PrivateAssets>
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>