CI: Add TEST_DATA_HOME to match cache directory

Author: effigies

.github/workflows/pythonpackage.yml

@@ -183,6 +183,8 @@ jobs:
         test "${INSTALLED_VERSION}" = "${THISVERSION}"
     - name: Install test dependencies
       run: python -m pip install "niworkflows[tests]"
+    - name: Set TEST_DATA_HOME
+      run: echo "TEST_DATA_HOME=$HOME/.cache/stanford-crn" >> $GITHUB_ENV
     - name: Run tests
       run: pytest -sv --doctest-modules -n auto --cov niworkflows niworkflows
     - uses: codecov/codecov-action@v3
@@ -243,6 +245,8 @@ jobs:
         test "${INSTALLED_VERSION}" = "${THISVERSION}"
     - name: Install test dependencies
       run: python -m pip install $PIP_FLAGS "niworkflows[tests]"
+    - name: Set TEST_DATA_HOME
+      run: echo "TEST_DATA_HOME=$HOME/.cache/stanford-crn" >> $GITHUB_ENV
     - name: Run tests
       run: pytest -sv --doctest-modules -n auto --cov niworkflows niworkflows
     - uses: codecov/codecov-action@v3