🏗️ Update CI workflow to use only Ubuntu (#736)

Author: yezz123

.github/workflows/ci.yml

@@ -45,7 +45,7 @@ jobs:
 
         python-version: [ "3.9", "3.10", "3.11", "3.12", "3.13"]
 
-        os: [ubuntu, macos, windows]
+        os: [ubuntu]
 
     steps:
       - uses: actions/checkout@v4
@@ -87,7 +87,7 @@ jobs:
 
         python-version: [ "3.9", "3.10", "3.11", "3.12", "3.13"]
 
-        os: [ubuntu, macos, windows]
+        os: [ubuntu]
 
     steps:
       - uses: actions/checkout@v4