fix(ci): update .NET SDK version to 10.0.x to match sidecar target framework

The sidecar projects were updated to target net10.0 but the CI
workflow still installed dotnet-version 9.0.x, causing all validate
jobs to fail at the sidecar test step.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.github/workflows/release.yml

@@ -40,7 +40,7 @@ jobs:
       - name: Set up .NET
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: 9.0.x
+          dotnet-version: 10.0.x
 
       - name: Install Linux native dependencies
         if: runner.os == 'Linux'
@@ -115,7 +115,7 @@ jobs:
       - name: Set up .NET
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: 9.0.x
+          dotnet-version: 10.0.x
 
       - name: Install Linux native dependencies
         if: runner.os == 'Linux'