Update CI.

Author: tobiasraabe

.github/workflows/main.yml

@@ -5,9 +5,6 @@ concurrency:
   group: ${{ github.head_ref || github.run_id }}
   cancel-in-progress: true
 
-env:
-  CONDA_EXE: mamba
-
 on:
   push:
     branches:
@@ -18,6 +15,21 @@ on:
 
 jobs:
 
+  run-type-checking:
+
+    name: Run tests for type-checking
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version-file: .python-version
+          allow-prereleases: true
+          cache: pip
+      - run: pip install tox-uv
+      - run: tox -e typing
+
   run-tests:
 
     name: Run tests for ${{ matrix.os }} on ${{ matrix.python-version }}
@@ -31,33 +43,29 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - uses: conda-incubator/setup-miniconda@v2
+      - uses: actions/setup-python@v5
         with:
-          auto-update-conda: false
           python-version: ${{ matrix.python-version }}
-          channels: conda-forge,nodefaults
-          miniforge-variant: Mambaforge
-
-      - name: Install core dependencies.
-        shell: bash -l {0}
-        run: mamba install -c conda-forge tox-conda coverage
+          cache: pip
+          allow-prereleases: true
+      - run: pip install tox-uv
 
       # Unit, integration, and end-to-end tests.
 
       - name: Run unit tests and doctests.
         shell: bash -l {0}
         run: tox -e pytest -- -m "unit or (not integration and not end_to_end)" --cov=./ --cov-report=xml -n auto
 
-      - name: Upload coverage report for unit tests and doctests.
-        if: runner.os == 'Linux' && matrix.python-version == '3.8'
-        shell: bash -l {0}
-        run: bash <(curl -s https://codecov.io/bash) -F unit -c
+      - name: Upload unit test coverage reports to Codecov with GitHub Action
+        uses: codecov/codecov-action@v4
+        with:
+          flags: unit
 
       - name: Run end-to-end tests.
         shell: bash -l {0}
         run: tox -e pytest -- -m end_to_end --cov=./ --cov-report=xml -n auto
 
-      - name: Upload coverage reports of end-to-end tests.
-        if: runner.os == 'Linux' && matrix.python-version == '3.8'
-        shell: bash -l {0}
-        run: bash <(curl -s https://codecov.io/bash) -F end_to_end -c
+      - name: Upload end_to_end test coverage reports to Codecov with GitHub Action
+        uses: codecov/codecov-action@v4
+        with:
+          flags: end_to_end