Tweak to .github/workflows/ scripts, install trimesh before running t…

…ests.

.github/workflows/python-test-vcpkg.yml

@@ -63,6 +63,7 @@ jobs:
           python -m pip install --upgrade pip
           python -m pip install cmake setuptools scikit-build wheel 'versioneer[toml]'
           if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+          python -m pip install trimesh
 
       - name: Build and install with pip
         env:

.github/workflows/python-test.yml

@@ -31,6 +31,7 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         python -m pip install numpy cython setuptools scikit-build wheel 'versioneer[toml]' flake8 pytest
+        python -m pip install trimesh
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
         python -m pip install --user .
     - name: Lint with flake8

.github/workflows/python-wheel-vcpkg.yml

@@ -93,6 +93,7 @@ jobs:
           CIBW_BEFORE_BUILD_LINUX: "if [[ -e /project/_skbuild ]]; then rm -rf /project/_skbuild; fi; df -h"
           CIBW_BEFORE_ALL_LINUX: "/usr/bin/yum install --assumeyes --verbose zip unzip tar cmake"
           CIBW_MANYLINUX_X86_64_IMAGE: "manylinux_2_28"
+          CIBW_BEFORE_TEST: "python -m pip install trimesh"
           # Run the package tests using `pytest`
           CIBW_TEST_COMMAND: "python -m pyemblite.test -fv"