Update FW 4.87 Latest Version (#9366)

Updates the latest FW version according to: https://www.playstation.com/en-us/support/system-updates/ps3/
List of changes:
・ Updated blu-ray keys for new movie releases
・ Minor security fix

rpcs3/rpcs3qt/main_window.cpp

@@ -785,7 +785,7 @@ void main_window::HandlePupInstallation(QString file_path)
 		version_string.erase(version_pos);
 	}
 
-	const std::string cur_version = "4.86";
+	const std::string cur_version = "4.87";
 
 	if (version_string < cur_version &&
 		QMessageBox::question(this, tr("RPCS3 Firmware Installer"), tr("Old firmware detected.\nThe newest firmware version is %1 and you are trying to install version %2\nContinue installation?").arg(qstr(cur_version), qstr(version_string)),