DEV: assorted cleanup (#55)

* DEV: bump to 0.3.3.dev0

* clean up pyproject.toml

* update lockfile

* simplify CI workflows

* fix CI

Author: lucascolley

Diff for: .github/workflows/ci.yml

@@ -34,6 +34,7 @@ jobs:
         with:
           pixi-version: v0.39.0
           cache: true
+          environments: lint
       - name: Run Pylint, Mypy & Pyright
         run: |
           pixi run -e lint pylint

Diff for: .github/workflows/docs-build.yml

@@ -11,6 +11,7 @@ jobs:
         with:
           pixi-version: v0.39.0
           cache: true
+          environments: docs
       - name: Build Docs
         run: pixi run -e docs docs
       - name: Upload Artifact