DOC: Fix grammar in AUTHORS.md #24098

Job	Run time
python-dev	0s
Linux-32-bit	18m 13s
Linux-Musl	15m 12s
Pyodide build	23m 11s
windows-latest actions-310.yaml	34m 48s
windows-latest actions-311.yaml	33m 42s
macos-14 actions-311.yaml	23m 29s
windows-latest actions-312.yaml	36m 40s
macos-14 actions-312.yaml	21m 13s
macos-13 actions-310.yaml	34m 16s
macos-13 actions-311.yaml	33m 20s
macos-13 actions-312.yaml	29m 20s
windows-latest actions-313.yaml	43m 23s
macos-13 actions-313.yaml	26m 52s
macos-14 actions-310.yaml	20m 12s
macos-14 actions-313.yaml	20m 56s
Freethreading	22m 27s
Downstream Compat	5m 12s
ubuntu-24.04-arm actions-311.yaml	36m 29s
ubuntu-24.04-arm actions-310.yaml	36m 10s
ubuntu-24.04 actions-312.yaml	44m 17s
Pypy	1m 28s
Locale: it_IT	24m 12s
Pyarrow Nightly	20m 58s
ubuntu-24.04-arm actions-313.yaml	36m 11s
Minimum Versions	23m 24s
ubuntu-24.04 actions-313.yaml	47m 41s
Future infer strings	45m 16s
ubuntu-24.04 actions-310.yaml	46m 28s
ubuntu-24.04 actions-311.yaml	42m 22s
Locale: zh_CN	23m 42s
ubuntu-24.04-arm actions-312.yaml	35m 28s
Future infer strings (without pyarrow)	38m 29s
Numpy Dev	16m 16s
	16h 1m 17s

Provide feedback