Do not use quotes

Author: mhegazy

.github/workflows/swift-toolchain.yml

@@ -5134,7 +5134,7 @@ jobs:
               -p:CERTIFICATE=${env:CERTIFICATE} `
               -p:PASSPHRASE=${{ secrets.PASSPHRASE }} `
               -p:BundleFlavor=online `
-              -p:BaseReleaseDownloadUrl=`"$BaseReleaseDownloadUrl`" `
+              -p:BaseReleaseDownloadUrl=$BaseReleaseDownloadUrl `
               -p:Platforms="`"$($Platforms -Join ';')`"" `
               -p:AndroidArchitectures="`"aarch64;armv7;i686;x86_64`"" `
               -p:WindowsArchitectures="`"aarch64;i686;x86_64`"" `