ci: update depreciated macOS-12 environment (#1720)

macOS tests are failing in CI, with following message:

> The macOS-12 environment is deprecated, consider switching to
macOS-13, macOS-14 (macos-latest) or macOS-15.

[Link to the
annoucement](actions/runner-images#10721) of
end of support in github since 2024-12-03.

It looks like postrgres has been removed from the image starting
at macOS-13. (postgres is mentioned in [macOS-12 installed
software](https://github.com/actions/runner-images/blob/main/images/macos/macos-12-Readme.md),
but missing from
[macOS-13's](https://github.com/actions/runner-images/blob/main/images/macos/macos-13-Readme.md))

Author: pierrecamilleri

.github/workflows/general.yaml

@@ -75,17 +75,16 @@ jobs:
 
   test-macos:
     if: github.event_name != 'schedule' || github.repository_owner == 'frictionlessdata'
-    # TODO: migrate to macos-latest after figuring out how to
-    # make `posgres/pg_config` works in the environment. Currently, it fails
-    # with the following error: "pg_config" not found"
-    runs-on: macos-12
+    runs-on: macos-14
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
       - name: Install Python
         uses: actions/setup-python@v5
         with:
           python-version: "3.10"
+      - name: Set up postgresql
+        run: brew install postgresql
       - name: Prepare environment
         run: pip3 install hatch
       - name: Prepare variables