ci: sign uiAccess server and installer

.github/workflows/release.yml

@@ -396,6 +396,16 @@ jobs:
           --windows-commit "$env:WINDOWS_COMMIT"
           --output installer/app_data/product-manifest.json
 
+      - name: Sign the uiAccess server
+        if: ${{ steps.signing.outputs.signing_enabled == 'true' }}
+        shell: pwsh
+        working-directory: installer
+        env:
+          CERTIFICATE_BASE64: ${{ secrets.WINDOWS_SIGNING_CERTIFICATE_BASE64 }}
+          CERTIFICATE_PASSWORD: ${{ secrets.WINDOWS_SIGNING_CERTIFICATE_PASSWORD }}
+          TIMESTAMP_URL: ${{ vars.WINDOWS_SIGNING_TIMESTAMP_URL || 'http://timestamp.digicert.com' }}
+        run: ../scripts/ci/sign-binaries.ps1 -Path 'server_exe/MetasequoiaImeServer.exe'
+
       - name: Install the Chinese language file for Inno Setup
         shell: pwsh
         run: ./scripts/ci/install-inno-language.ps1