Update deploy files.

Author: 22anirudhk

.github/workflows/deploy.yml

@@ -1,4 +1,4 @@
-name: Deploy to eecs189.org/fall2025
+name: Deploy to eecs189.org
 
 on:
   push:

.github/workflows/jekyll.yml

@@ -9,7 +9,7 @@ name: Deploy Jekyll site to Pages
 on:
   # Runs on pushes targeting the default branch
   push:
-    branches: ["main"]
+    branches: ["master"]
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
@@ -34,9 +34,10 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup Ruby
-        uses: ruby/setup-ruby@v1
+        # https://github.com/ruby/setup-ruby/releases/tag/v1.207.0
+        uses: ruby/setup-ruby@4a9ddd6f338a97768b8006bf671dfbad383215f4
         with:
-          # The Ruby version is determined by either a `.ruby-version` or a `.tool-versions` file in root of the repo.
+          ruby-version: "3.1" # Not needed with a .ruby-version file
           bundler-cache: true # runs 'bundle install' and caches installed gems automatically
           cache-version: 0 # Increment this number if you need to re-download cached gems
       - name: Setup Pages