Bump rich from 13.6.0 to 13.7.0 in /.github/requirements #726

Job	Run time
sdists	53s
3.11 win32 cp37	2m 46s
3.11 win64 cp37	2m 46s
3.11 ABI cp37 macOS -arch x86_64 -arch arm64	5m 40s
pypy-3.9 win64	2m 55s
cp311-cp311 for manylinux2014_x86_64	1m 22s
3.11 ABI cp37 macOS -arch x86_64	3m 19s
pypy-3.10 win64	3m 11s
cp311-cp311 for manylinux_2_28_x86_64	1m 23s
pypy-3.9 ABI macOS -arch x86_64	1m 53s
cp311-cp311 for musllinux_1_1_x86_64	1m 44s
pypy-3.10 ABI macOS -arch x86_64	1m 47s
cp311-cp311 for musllinux_1_2_x86_64	1m 54s
cp311-cp311 for manylinux2014_aarch64	4m 28s
cp311-cp311 for manylinux_2_28_aarch64	4m 21s
cp311-cp311 for musllinux_1_1_aarch64	3m 22s
cp311-cp311 for musllinux_1_2_aarch64	3m 21s
pp39-pypy39_pp73 for manylinux_2_28_x86_64	1m 35s
pp39-pypy39_pp73 for manylinux_2_28_aarch64	3m 59s
pp310-pypy310_pp73 for manylinux_2_28_x86_64	1m 52s
pp310-pypy310_pp73 for manylinux_2_28_aarch64	4m 24s
	58m 55s

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