Tests

374 add hypothesis tests for kml, containers and features #1646

Job	Run time
cpython-lxml (3.8)	3m 10s
cpython-lxml (3.9)	3m 11s
cpython-lxml (3.10)	3m 20s
cpython-lxml (3.11)	3m 39s
cpython-lxml (3.12)	4m 41s
cpython-lxml (3.13)	4m 58s
Build & inspect our package.	20s
cpython (3.8)	19s
cpython (3.9)	18s
cpython (3.10)	12s
doctest-lxml (3.12)	45s
cpython (3.11)	13s
cpython (3.12)	17s
cpython (3.13)	21s
pypy (pypy-3.8)	50s
cpython (3.14-dev)	24s
pypy (pypy-3.9)	31s
pypy (pypy-3.10)	37s
static-tests (3.12)	43s
Publish to PyPI on push to main	0s
Test install on TestPyPI	0s
	28m 49s

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