Add support for `--pip-version 24.3.1`. (#2582) #3143

Job	Run time
Check GitHub Organization	1s
./dtox.sh -e py27-pip20	9m 33s
tox -e format-check,lint-check,typecheck,vendor-check,package,docs	8m 28s
tox -e py313-pip24_3_1	23m 15s
./dtox.sh -e py38-pip22_3_1	18m 26s
tox -e py313-pip24_3_1-integration --shard 1/2	29m 50s
tox -e py313-pip24_3_1-integration --shard 2/2	34m 22s
./dtox.sh -e py311-pip23_3_2	18m 58s
./dtox.sh -e py313-pip24_3_1	14m 39s
./dtox.sh -e py314-pip24_3_1	15m 31s
./dtox.sh -e pypy310-pip24_3_1	27m 11s
./dtox.sh -e py27-pip20-integration	28m 16s
./dtox.sh -e py38-pip22_3_1-integration --shard 1/2	27m 41s
./dtox.sh -e py38-pip22_3_1-integration --shard 2/2	29m 16s
./dtox.sh -e py311-pip23_3_2-integration --shard 1/2	28m 25s
./dtox.sh -e py311-pip23_3_2-integration --shard 2/2	29m 36s
./dtox.sh -e py313-pip24_3_1-integration --shard 1/2	25m 53s
./dtox.sh -e py313-pip24_3_1-integration --shard 2/2	26m 17s
./dtox.sh -e py314-pip24_3_1-integration --shard 1/2	24m 11s
./dtox.sh -e py314-pip24_3_1-integration --shard 2/2	27m 18s
./dtox.sh -e pypy310-pip24_3_1-integration --shard 1/2	44m 16s
./dtox.sh -e pypy310-pip24_3_1-integration --shard 2/2	49m 45s
Gather Final Status	1s
	9h 1m 9s

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