Update heroku/buildpacks-dotnet to v0.3.1 (#671)

## heroku/dotnet

### Changed

- The .NET SDK inventory was updated with new download URLs for version 9.0 release artifacts. ([#203](heroku/buildpacks-dotnet#203))
- The buildpack will now skip NuGet package XML doc extraction when running `dotnet publish`. ([#212](heroku/buildpacks-dotnet#212))
- The build configuration is no longer written to the log before the `dotnet publish` command (which still includes the build configuration value when specified). ([#213](heroku/buildpacks-dotnet#213))

Co-authored-by: heroku-linguist[bot] <136119646+heroku-linguist[bot]@users.noreply.github.com>

builder-22/builder.toml

@@ -23,7 +23,7 @@ version = "0.20.6"
 
 [[buildpacks]]
   id = "heroku/dotnet"
-  uri = "docker://docker.io/heroku/buildpack-dotnet@sha256:066863a37e4620fa409611f6bdca1966aabe5c7a132d15c37059b99ca01f352e"
+  uri = "docker://docker.io/heroku/buildpack-dotnet@sha256:39716b9e30743c7902905d0f3c55185030fac5cff58bacc8913b589df9930ded"
 
 [[buildpacks]]
   id = "heroku/go"
@@ -154,7 +154,7 @@ version = "0.20.6"
     optional = true
   [[order.group]]
     id = "heroku/dotnet"
-    version = "0.3.0"
+    version = "0.3.1"
   [[order.group]]
     id = "heroku/procfile"
     version = "4.1.0"

builder-24/builder.toml

@@ -23,7 +23,7 @@ mirrors = ["public.ecr.aws/heroku/heroku:24"]
 
 [[buildpacks]]
   id = "heroku/dotnet"
-  uri = "docker://docker.io/heroku/buildpack-dotnet@sha256:066863a37e4620fa409611f6bdca1966aabe5c7a132d15c37059b99ca01f352e"
+  uri = "docker://docker.io/heroku/buildpack-dotnet@sha256:39716b9e30743c7902905d0f3c55185030fac5cff58bacc8913b589df9930ded"
 
 [[buildpacks]]
   id = "heroku/go"
@@ -154,7 +154,7 @@ mirrors = ["public.ecr.aws/heroku/heroku:24"]
     optional = true
   [[order.group]]
     id = "heroku/dotnet"
-    version = "0.3.0"
+    version = "0.3.1"
   [[order.group]]
     id = "heroku/procfile"
     version = "4.1.0"