Add macos runner as part of the test matrix strategy

Signed-off-by: tdruez <tdruez@nexb.com>

Author: tdruez

.github/workflows/ci.yml .github/workflows/run-unit-tests.yml.github/workflows/ci.yml renamed to .github/workflows/run-unit-tests.yml

@@ -1,4 +1,4 @@
-name: Test CI
+name: Run unit tests
 
 on: [push, pull_request]
 
@@ -10,8 +10,6 @@ env:
 
 jobs:
   build:
-    runs-on: ubuntu-22.04
-
     services:
       postgres:
         image: postgres:13
@@ -31,8 +29,11 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
+        os: [ubuntu-24.04, macos-15]
         python-version: ["3.10", "3.11", "3.12", "3.13"]
 
+    runs-on: ${{ matrix.os }}
+
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -42,12 +43,20 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
 
-      - name: Install universal ctags and xgettext
+      - name: Install dependencies (Linux)
+        if: runner.os == 'Linux'
         run: |
           sudo apt-get update
           sudo apt-get install -y universal-ctags gettext
 
-      - name: Install dependencies
+      - name: Install dependencies (macOS)
+        if: runner.os == 'macOS'
+        run: |
+          brew install postgresql@13
+          pg_ctl -D /opt/homebrew/var/postgresql@13 start
+          createdb $POSTGRES_DB
+
+      - name: Install Python dependencies
         run: make dev envfile
 
       - name: Validate code format