DevOps: use python 3.10 in github workflows (#105)

The latest versions of aiida-quantumespresso do not support
anymore python 3.9 as it is end-of-life. This made the weekly
workflow to fail.

Author: bastonero

.github/workflows/cd.yml

@@ -16,10 +16,10 @@ jobs:
         -   name: Checkout source
             uses: actions/checkout@v4
 
-        -   name: Set up Python 3.9
+        -   name: Set up Python 3.10
             uses: actions/setup-python@v2
             with:
-                python-version: '3.9'
+                python-version: '3.10'
 
         -   name: Validate the tag version against the package version
             run: python .github/workflows/validate_release_tag.py $GITHUB_REF
@@ -43,7 +43,7 @@ jobs:
         -   name: Set up Python
             uses: actions/setup-python@v2
             with:
-                python-version: '3.9'
+                python-version: '3.10'
 
         -   name: Install Python dependencies
             run: pip install -e .[pre-commit,tests]
@@ -100,10 +100,10 @@ jobs:
         -   name: Checkout source
             uses: actions/checkout@v4
 
-        -   name: Set up Python 3.9
+        -   name: Set up Python 3.10
             uses: actions/setup-python@v2
             with:
-                python-version: '3.9'
+                python-version: '3.10'
 
         -   name: Install flit
             run: pip install flit~=3.4

.github/workflows/weekly.yml

@@ -20,7 +20,7 @@ jobs:
 
         strategy:
             matrix:
-                python-version: ['3.9', '3.12']
+                python-version: ['3.10', '3.12']
 
         services:
             postgres: