Fix the permissions issues with S3 test by caching AWS credentials #1542

Job	Run time
check-docs	2m 46s
linux-compat (al2-x64)	1m 7s
linux-compat (fedora-34-x64)	1m 26s
linux-compat (opensuse-leap)	1m 23s
linux-compat (rhel8-x64)	1m 24s
check-submodules	45s
linux-compiler-compat (clang-3)	1m 38s
linux-compiler-compat (clang-6)	1m 37s
linux-compiler-compat (clang-8)	1m 37s
linux-compiler-compat (clang-9)	1m 36s
linux-compiler-compat (clang-10)	1m 40s
linux-compiler-compat (clang-11)	1m 37s
linux-compiler-compat (gcc-5)	1m 34s
linux-compiler-compat (gcc-6)	1m 37s
linux-compiler-compat (gcc-7)	1m 21s
linux-compiler-compat (gcc-8)	1m 36s
manylinux1 (x64, cp37-cp37m)	4m 14s
manylinux1 (x64, cp38-cp38)	4m 51s
manylinux1 (x64, cp39-cp39)	3m 31s
manylinux1 (x86, cp37-cp37m)	4m 21s
manylinux1 (x86, cp38-cp38)	4m 26s
manylinux1 (x86, cp39-cp39)	5m 41s
openbsd	1h 3m 43s
manylinux2014 (x64, cp37-cp37m)	4m 52s
manylinux2014 (x64, cp38-cp38)	4m 29s
manylinux2014 (x64, cp39-cp39)	4m 0s
manylinux2014 (x64, cp310-cp310)	4m 0s
manylinux2014 (x64, cp311-cp311)	3m 58s
manylinux2014 (x86, cp37-cp37m)	4m 36s
manylinux2014 (x86, cp38-cp38)	4m 12s
manylinux2014 (x86, cp39-cp39)	5m 32s
manylinux2014 (x86, cp310-cp310)	4m 7s
manylinux2014 (x86, cp311-cp311)	3m 57s
manylinux2014 (aarch64, cp37-cp37m)	40m 40s
manylinux2014 (aarch64, cp38-cp38)	30m 3s
manylinux2014 (aarch64, cp39-cp39)	31m 3s
manylinux2014 (aarch64, cp310-cp310)	36m 11s
manylinux2014 (aarch64, cp311-cp311)	44m 0s
osx	5m 15s
package-source	1m 55s
raspberry (raspbian-bullseye)	31m 51s
tests-ok-without-env-vars	2m 43s
use-system-libcrypto	5m 48s
windows (x86)	5m 1s
windows (x64)	4m 57s
	6h 38m 41s

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