Derive version from lsst_utils setuptools plugin

.github/workflows/build.yaml

@@ -67,10 +67,6 @@ jobs:
       - name: Build and install
         shell: bash -l {0}
         run: |
-          # Force the version to be written
-          export PATH="$(dirname $(which python)):$PATH"
-          echo PATH=$PATH
-          python setup.py build
           python -m pip install -v -e .
 
       - name: Run tests

pyproject.toml

@@ -1,3 +1,7 @@
+[build-system]
+requires = ["setuptools", "lsst_utils @ git+https://github.com/lsst/utils@tickets/DM-32408"]
+build-backend = "setuptools.build_meta"
+
 [tool.towncrier]
     package = "lsst.resources"
     package_dir = "python"
@@ -49,3 +53,6 @@ target-version = ["py38"]
 [tool.isort]
 profile = "black"
 line_length = 110
+
+[tool.lsst.utils.versions]
+write_to = "python/lsst/resources/version.py"