Move wheel install logic into Pex. #2327

Job	Run time
Check GitHub Organization	1s
tox -e py312-pip23_3_1	41m 31s
tox -e py312-pip23_3_1-integration	41m 31s
tox -e format-check,typecheck,vendor-check,package	4m 17s
./dtox.sh -e py27-pip20	12m 15s
./dtox.sh -e py35-pip20	13m 27s
./dtox.sh -e py311-pip20	15m 28s
./dtox.sh -e py311-pip22_3_1	15m 55s
./dtox.sh -e py311-pip23_1_2	15m 40s
./dtox.sh -e py312-pip23_3_1	14m 29s
./dtox.sh -e pypy310-pip20	23m 46s
./dtox.sh -e pypy310-pip22_3_1	24m 6s
./dtox.sh -e pypy310-pip23_1_2	24m 3s
./dtox.sh -e py27-pip20-integration	19m 59s
./dtox.sh -e py37-pip22_3_1-integration	24m 7s
./dtox.sh -e py37-pip23_1_2-integration	24m 7s
./dtox.sh -e py311-pip20-integration	22m 16s
./dtox.sh -e py311-pip22_3_1-integration	24m 13s
./dtox.sh -e py311-pip23_1_2-integration	24m 5s
./dtox.sh -e py312-pip23_3_1-integration	24m 5s
./dtox.sh -e pypy310-pip20-integration	24m 6s
./dtox.sh -e pypy310-pip22_3_1-integration	24m 6s
./dtox.sh -e pypy310-pip23_1_2-integration	24m 6s
Gather Final Status	1s
	8h 1m 40s

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