add `--keyring-provider` flag to configure keyring-based authentication #3307

Job	Run time
Check GitHub Organization	1s
tox -e format-check,lint-check,typecheck,enum-check,vendor-check,package,docs	11m 1s
tox -e py313-pip24_3_1	17m 41s
./dtox.sh -e py27-pip20	14m 8s
tox -e py313-pip24_3_1-integration --shard 1/2	23m 33s
./dtox.sh -e py38-pip22_3_1	14m 24s
tox -e py313-pip24_3_1-integration --shard 2/2	23m 34s
./dtox.sh -e py311-pip23_3_2	14m 25s
./dtox.sh -e py313-pip24_3_1	14m 25s
./dtox.sh -e py314-pip24_3_1	14m 24s
./dtox.sh -e pypy310-pip24_3_1	14m 25s
./dtox.sh -e py27-pip20-integration	14m 27s
./dtox.sh -e py38-pip22_3_1-integration --shard 1/2	14m 25s
./dtox.sh -e py38-pip22_3_1-integration --shard 2/2	14m 23s
./dtox.sh -e py311-pip23_3_2-integration --shard 1/2	14m 25s
./dtox.sh -e py311-pip23_3_2-integration --shard 2/2	14m 25s
./dtox.sh -e py313-pip24_3_1-integration --shard 1/2	14m 26s
./dtox.sh -e py313-pip24_3_1-integration --shard 2/2	14m 25s
./dtox.sh -e py314-pip24_3_1-integration --shard 1/2	14m 24s
./dtox.sh -e py314-pip24_3_1-integration --shard 2/2	14m 25s
./dtox.sh -e pypy310-pip24_3_1-integration --shard 1/2	1s
./dtox.sh -e pypy310-pip24_3_1-integration --shard 2/2	14m 24s
Gather Final Status	1s
	5h 6m 12s

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