Run pytest workflow on ubuntu-latest instead of self-hosted, remove unused build.yml

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019NAb8d5TWs82v33vmv9hkT

Author: Aaron Meyer

.github/workflows/build.yml

@@ -4,27 +4,20 @@ on: [push]
 
 jobs:
   build:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
-    - name: Setup submodule
-      run: git submodule update --init --recursive
-    - name: Install uv
-      uses: astral-sh/setup-uv@v5
-    - name: Install dependencies
-      run: uv sync
-    - name: Lint with ruff
-      run: uv run ruff check .
-    - name: Check formatting with ruff
-      run: uv run ruff format --check .
-    - name: Type check with ty
-      run: uv run ty check
-    - name: Test with pytest
-      run: uv run pytest --cov=lineage --cov-report=xml --cov-config=.github/workflows/coveragerc
-    - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v4
-      with:
-        file: ./coverage.xml
-        flags: unittests
-        token: ${{ secrets.CODECOV_TOKEN }}
-        fail_ci_if_error: true
+      - uses: actions/checkout@v4
+      - name: Setup submodule
+        run: git submodule update --init --recursive
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
+      - name: Install dependencies
+        run: uv sync
+      - name: Lint with ruff
+        run: uv run ruff check .
+      - name: Check formatting with ruff
+        run: uv run ruff format --check .
+      - name: Type check with ty
+        run: uv run ty check
+      - name: Test with pytest
+        run: uv run pytest --cov=lineage --cov-report=xml --cov-config=.github/workflows/coveragerc