feat: update publish nuget file

Author: unsafePtr

.github/workflows/publish-nuget.yml

@@ -22,6 +22,9 @@ on:
         required: false
         type: string
 
+permissions:
+  id-token: write   # required for GitHub OIDC
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -42,7 +45,7 @@ jobs:
     - name: Setup .NET
       uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: 9.0.x
+        dotnet-version: 10.0.x
 
     - name: Restore dependencies
       run: dotnet restore src/Base58Encoding.slnx
@@ -71,6 +74,7 @@ jobs:
     if: startsWith(github.ref, 'refs/tags/v') || (github.event_name == 'workflow_dispatch' && github.event.inputs.version != '')
     permissions:
       contents: write
+      id-token: write  # enable GitHub OIDC token issuance for this job
 
     steps:
     - name: Download artifacts
@@ -80,12 +84,18 @@ jobs:
         path: ./artifacts
 
     - name: Setup .NET
-      uses: actions/setup-dotnet@v4
+      uses: actions/setup-dotnet@v5
+      with:
+        dotnet-version: 10.0.x
+        
+    - name: NuGet login (OIDC → temp API key)
+      uses: NuGet/login@v1
+      id: login
       with:
-        dotnet-version: 9.0.x
+        user: ${{ secrets.NUGET_USER }}
 
     - name: Publish to NuGet
-      run: dotnet nuget push ./artifacts/*.nupkg --source https://api.nuget.org/v3/index.json --api-key ${{ secrets.NUGET_API_KEY }} --skip-duplicate
+      run: dotnet nuget push ./artifacts/*.nupkg --source https://api.nuget.org/v3/index.json --api-key ${{ steps.login.outputs.NUGET_API_KEY }} --skip-duplicate
 
     - name: Create GitHub Release
       uses: softprops/action-gh-release@v2

src/Base58Encoding/Base58.Decode.cs

@@ -1,9 +1,4 @@
-using System;
 using System.Buffers.Binary;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace Base58Encoding;