Update Announcements (#432)

Co-authored-by: Hack Bot <uclaacmhack+ghbot@gmail.com>

src/data/announcements.json

@@ -1,4 +1,10 @@
 [
+    {
+        "id": 12,
+        "subject": "Submissions due in less than 1 hour!",
+        "body": "Attention all hackers!\r\n\r\nThe submission period is open and we will be taking submissions UNTIL 9:00PM so make sure you set aside time to go through that process!\r\n\r\nONLY ONE member of your team has to SUBMIT TO THE DEVPOST AND THE GOOGLE FORM, found on the submission page of this website. Make sure you have provided the following information on Devpost:\r\n- Maximum 3 minute demo video of your project\r\n- Project overview (description of project)\r\n- Link to your code (either Github, Google Drive, or otherwise)\r\n\r\nNote: all other fields that Devpost asks for are NOT strictly required. Once the submission period is over, we will have a 1.5 hour long judging period before announcing winners at our closing ceremony!\r\n\r\nKeep pushing through! You got this!",
+        "timestamp": "2024-03-04T04:01:56Z"
+    },
     {
         "id": 11,
         "subject": "Final stretch is here!",