Use ruby/setup-ruby instead of manual apt install

.github/workflows/python.yml

@@ -63,11 +63,12 @@ jobs:
     steps:
     - uses: actions/checkout@v3
 
-    - name: Dependencies
-      run: |
-        apt-get update
-        apt-get install --yes ruby
-        gem install fpm
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: '3.0'
+
+    - name: Install fpm
+      run: gem install fpm
 
     - name: Build
       run: fpm
@@ -78,7 +79,7 @@ jobs:
         --maintainer "Rodney <rodney@rodney.io>"
         --category python
         --depends "python3 >= 3.9"
-        legendary
+        setup.py
 
     - name: OS version
       id: os_version