feat: build improvements (#3)

* feat: build improvements

- remove pipenv dependency
- add changelog
- sync version with upstream oxipng crate

* fix: workflow file syntax

* fix: reduce redundant workflow actions

* fix: correct pip cache dependency path

* refactor: more reliable dependency/CI installation

* fix: correct workflow file env syntax

* fix: test improved venv strategy

* fix: workflow syntax

* fix: revert pipenv removal

* fix: restore redundant workflow run cancellation

Author: Nick Frasser

.github/workflows/CI.yml

@@ -2,7 +2,15 @@ name: CI
 
 on:
   push:
+    branches: [ main ]
   pull_request:
+    branches: [ main ]
+  release:
+    types: [published]
+
+concurrency:
+  group: ${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
 
 jobs:
   test:

CHANGELOG.md

@@ -0,0 +1,13 @@
+# Changelog
+
+## 5.0.0
+
+* Sync version with oxipng major releases
+
+## 0.2.0
+
+* Update project metadata
+
+## 0.1.0
+
+* Initial release