revert

Author: parthea

.github/workflows/unittest.yml

@@ -16,8 +16,6 @@ permissions:
 env:
   TEST_ALL_PACKAGES: "false" # Set to "false" to only run tests for packages with a git diff
   ALL_PYTHON: "['3.9', '3.10', '3.11', '3.12', '3.13', '3.14', '3.15']"
-  # Force static compilation of libxml2 and libxslt for lxml packages
-  STATIC_DEPS: "true"
 
 jobs:
   # Dynamic package discovery job to calculate required matrix size automatically
@@ -75,6 +73,17 @@ jobs:
       with:
         enable-cache: true
         cache-dependency-glob: 'packages/**/testing/constraints*.txt'
+    # Temporarily needed for Python 3.15+.
+    # Packages like `lxml` (required by `pikepdf` -> `google-cloud-documentai-toolbox`)
+    # do not have precompiled binary wheels on PyPI for Python 3.15 yet.
+    # This requires building `lxml` from source, which uses local
+    # system headers. Once stable Python 3.15 is released and `lxml` wheels are
+    # published to PyPI, this step can be safely removed.
+    - name: Install libxml2 and libxslt dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y libxml2-dev libxslt1-dev
+
     - name: Install nox
       run: |
         uv pip install --system nox nox-uv
@@ -102,8 +111,6 @@ jobs:
         # Can be removed once libcst releases a version with native Python 3.15 wheels
         # Follow https://github.com/Instagram/LibCST/issues/1445 for updates.
         PYO3_USE_ABI3_FORWARD_COMPATIBILITY: "1"
-        # Ensure sub-processes (such as Nox test runs) statically compile lxml dependencies
-        STATIC_DEPS: "true"
       run: |
         UNIQUE_BATCH_PACKAGES=$(python -c 'import sys; sys.path.append("ci"); import get_batches; print(get_batches.get_batch_slice(${{ matrix.batch-index }}))')