feat: use nodejs.org folder a base for --pre-release

[RafaelGSS]

Fixes: https://github.com/nodejs-private/security-release/issues/15 & https://github.com/nodejs-private/security-release/issues/18

➜  security-release (next-security-release) ../node-core-utils/bin/git-node.js security --pre-release='../nodejs.org'                                                                                            ✱
   ℹ  Current branch: next-security-release
--------------------------------------------------------------------------------
✔ When is the security release going to be announced? Enter in YYYY/MM/DD format: 2024/11/28
   ✔  Announcement file created and banner has been updated. Folder: ../nodejs.org
➜  security-release (next-security-release) cd ../nodejs.org                                                                                                                                                     
➜  nodejs.org (main) git status                                                                                                                                                                                
On branch main
Your branch is up to date with 'origin/main'.

Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
        modified:   apps/site/site.json

Untracked files:
  (use "git add <file>..." to include in what will be committed)
        apps/site/pages/en/blog/release/november-2024-security-releases.md

no changes added to commit (use "git add" and/or "git commit -a")

Diff:

diff --git a/apps/site/site.json b/apps/site/site.json
index 3ed40c4e..50aa0798 100644
--- a/apps/site/site.json
+++ b/apps/site/site.json
@@ -28,10 +28,10 @@
   ],
   "websiteBanners": {
     "index": {
-      "startDate": "2024-07-08T00:00:00.000Z",
-      "endDate": "2024-07-16T23:59:00.000Z",
-      "text": "July Security Release is available",
-      "link": "https://nodejs.org/en/blog/vulnerability/july-2024-security-releases",
+      "startDate": "2024-11-28T03:00:00.000Z",
+      "endDate": "2024-12-05T03:00:00.000Z",
+      "text": "November Security Release is available",
+      "link": "https://nodejs.org/en/blog/vulnerability/november-2024-security-releases",
       "type": "warning"
     }
   },
@@ -45,4 +45,4 @@
       "link": "https://linuxfoundation.surveymonkey.com/r/nodenext10survey24"
     }
   }
-}
+}
\ No newline at end of file

[RafaelGSS]

cc: @nodejs/security-release