back to macos 13

Author: trungleduc

.github/workflows/main.yml

@@ -84,7 +84,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-14]
+        os: [macos-13]
         python_version: ['3.9', '3.10', '3.11']
 
     steps:
@@ -106,7 +106,7 @@ jobs:
             ipywidgets
             matplotlib
             xeus-cling
-            "traitlets>=5.0.3,<6"
+            traitlets>=5.0.3,<6
             ipykernel
             pyzmq=25.1.0
 

.github/workflows/packaging.yml

@@ -61,7 +61,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-14, windows-latest]
+        os: [ubuntu-latest, macos-13, windows-latest]
         python: ['3.8', '3.10']
         include:
           - python: '3.8'
@@ -70,7 +70,7 @@ jobs:
             dist: 'voila*.whl'
           - os: windows-latest
             py_cmd: python
-          - os: macos-14
+          - os: macos-13
             py_cmd: python3
           - os: ubuntu-latest
             py_cmd: python