build: disable PDB debug symbols in releases [CI SKIP]

ci/release-cross-platform.ps1

@@ -61,6 +61,7 @@ try {
         -p:PublishAot=true `
         -p:StripSymbols=true `
         -p:DebugType=none `
+        -p:DebugSymbols=false `
         --artifacts-path $buildRoot `
         -o $output
     if ($LASTEXITCODE -ne 0) {