Fix bug where testdepth would not be decreased on failed match #45

Job	Run time
test / lint	12s
test / test-python (3.11)	15s
test / test-bash (3.2)	17s
test / test-python (3.12)	20s
test / test-bash (3.2.48)	23s
test / test-bash (3.2.57)	18s
test / test-bash (4.0)	19s
test / test-bash (4.1)	20s
test / test-bash (4.2)	18s
test / test-bash (4.3)	17s
test / test-bash (4.3.30)	22s
test / test-bash (4.4)	19s
test / test-bash (5.0)	27s
test / test-bash (5.1)	22s
test / test-bash (5.1.8)	19s
test / test-bash (5.1.12)	32s
test / test-bash (5.1.16)	21s
test / test-bash (5.2)	22s
test / test-bash (5.2.9)	26s
test / test-bash (5.2.15)	20s
test / test-bash (5.2.21)	18s
Create docopt-lib.sh GitHub Release	15s
Publish docopt.sh to PyPI	37s
	7m 59s

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