Minor workflow tweak, enabling caching and saving a double build.

Author: Julian

.github/workflows/ci.yml

@@ -2,6 +2,8 @@ name: CI
 
 on:
   push:
+    tags:
+      - "v*"
   pull_request:
   release:
     types: [published]
@@ -61,6 +63,7 @@ jobs:
             3.12
             pypy3.10
           allow-prereleases: true
+          cache: pip
       - name: Set up nox
         uses: wntrblm/nox@2024.03.02
       - name: Run nox
@@ -83,6 +86,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
+          cache: pip
           python-version: "3.x"
       - name: Install dependencies
         run: python -m pip install build