fix: workflow attach ics file is in base64 format (#23680)

packages/features/ee/workflows/api/scheduleEmailReminders.ts

@@ -343,9 +343,7 @@ export async function handler(req: NextRequest) {
             attachments: reminder.workflowStep.includeCalendarEvent
               ? [
                   {
-                    content: Buffer.from(generateIcsString({ event, status: "CONFIRMED" }) || "").toString(
-                      "base64"
-                    ),
+                    content: generateIcsString({ event, status: "CONFIRMED" }) || "",
                     filename: "event.ics",
                     type: "text/calendar; method=REQUEST",
                     disposition: "attachment",

packages/features/ee/workflows/lib/reminders/emailReminderManager.ts

@@ -251,12 +251,11 @@ export const scheduleEmailReminder = async (args: scheduleEmailReminderArgs) =>
     const attachments = includeCalendarEvent
       ? [
           {
-            content: Buffer.from(
+            content:
               generateIcsString({
                 event: emailEvent,
                 status,
-              }) || ""
-            ).toString("base64"),
+              }) || "",
             filename: "event.ics",
             type: "text/calendar; method=REQUEST",
             disposition: "attachment",