Fix CI job to include tomli in zipapp (#1194)

* fix(ci): Build zipapp using Python 3.8

* docs: Update CHANGELOG.md

.github/workflows/tests.yml

@@ -12,6 +12,7 @@ concurrency:
 
 env:
   default-python: "3.12"
+  minimum-supported-python: "3.8"
 
 jobs:
   tests:
@@ -66,10 +67,10 @@ jobs:
     steps:
       - name: Checkout ${{ github.ref }}
         uses: actions/checkout@v4
-      - name: Set up Python ${{ env.default-python }}
+      - name: Set up Python ${{ env.minimum-supported-python }}
         uses: actions/setup-python@v5
         with:
-          python-version: ${{ env.default-python }}
+          python-version: ${{ env.minimum-supported-python }}
           cache: "pip"
       - name: Install nox
         run: pip install nox

CHANGELOG.md

@@ -4,6 +4,7 @@
 - Raise more user friendly error when provided `--python` version is not found
 - Update `pipx run` on scripts using `/// script` and no `run` table following the updated version of PEP 723 (#1180)
 - Avoid repeated exception logging in a few rare cases (#1192)
+- Include `tomli` into `pipx.pyz` (zipapp) so that it can be executed with Python 3.10 or earlier (#1142)
 
 ## 1.4.1