Make this version 1.2.1. #554

Job	Run time
build_and_test	39s
build_and_test_python (3.10, gcc, ubuntu)	18s
build_and_test_python (3.10, gcc, macos)	34s
build_and_test_python (3.11, gcc, macos)	19s
build_and_test_python (3.12, gcc, ubuntu)	18s
build_and_test_python (3.11, gcc, ubuntu)	23s
build_and_test_python (3.11, clang, macos)	17s
build_and_test_python (3.10, microsoft, windows)	44s
build_and_test_python (3.12, clang, ubuntu)	32s
build_and_test_python (3.11, microsoft, windows)	49s
build_and_test_python (3.12, clang, macos)	19s
build_and_test_python (3.11, clang, ubuntu)	20s
build_and_test_python (3.10, clang, macos)	40s
build_and_test_python (3.10, clang, ubuntu)	20s
build_and_test_python (3.12, gcc, macos)	16s
build_and_test_python (3.12, microsoft, windows)	48s
build_in_docker (debian:sid-slim)	8m 59s
build_in_docker (ubuntu:latest)	6m 14s
build_in_docker (debian:12-slim)	7m 34s
build_wheels / bin (3.8, 2_34)	3m 15s
build_wheels / bin (3.11, 2_34)	3m 30s
build_wheels / bin (3.12, 2_34)	3m 30s
build_wheels / bin (3.12, 2_28)	3m 33s
build_wheels / bin (3.9, 2_28)	3m 19s
build_wheels / bin (3.10, 2_34)	3m 41s
build_wheels / bin (3.9, 2_34)	3m 13s
build_wheels / bin (3.11, 2_28)	3m 37s
build_wheels / bin (3.10, 2_28)	4m 26s
build_wheels / bin (3.8, 2_28)	3m 24s
publish_all_wheels	17s
roll_release / Create Release Draft and distfile	0s
	1h 6m 8s

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