Fix release workflow binary path and bump action versions

Update checkout to v6 and setup-dotnet to v5. Fix the release artifact
path to match the AssemblyName casing (Scufpad, not scufpad).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: ChaseDRedmon

.github/workflows/release.yml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -32,7 +32,7 @@ jobs:
           echo "Next version: $next"
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '10.0.x'
           dotnet-quality: 'preview'
@@ -46,4 +46,4 @@ jobs:
           tag_name: ${{ steps.version.outputs.tag }}
           name: Scufpad ${{ steps.version.outputs.tag }}
           generate_release_notes: true
-          files: publish/scufpad
+          files: publish/Scufpad