requirements: update pandas requirement from <2.1.1 to <2.1.3 #8183

Job	Run time
select-runner	1s
build (3.7, x64, ubuntu)	1h 19m 35s
build (3.7, x64, windows)	1h 21m 57s
build (3.11, x64, ubuntu)	1h 49m 36s
build (3.11, x64, macos)	51m 47s
build (3.11, x64, windows)	1h 23m 7s
build (3.9, macos, --cov=psyneulink)	1h 12m 27s
build (3.9, ubuntu, --forked -m "not llvm")	1h 5m 6s
build (3.8, x86, windows)	1h 18m 14s
build (3.10, ubuntu, --fp-precision=fp32)	1h 41m 32s
build (3.10, macos, -m benchmark --benchmark-enable --benchmark-only --benchmark-min-rounds=2 --b...	49m 43s
build (3.7, x64, ubuntu, min)	1h 47m 45s
build (3.8, x64, macos)	1h 6m 54s
	15h 47m 44s

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