Add Jason as an owner of configparser to coordinate backport concerns. #2

Job	Run time
i686-pc-windows-msvc/msvc (Debug)	15m 26s
i686-pc-windows-msvc/msvc (Release)	20m 5s
x86_64-pc-windows-msvc/msvc (Debug)	16m 1s
x86_64-pc-windows-msvc/msvc (Release)	21m 13s
x86_64-apple-darwin/clang (Debug)	9m 10s
x86_64-apple-darwin/clang (Release)	16m 22s
aarch64-apple-darwin/clang (Debug)	8m 40s
aarch64-apple-darwin/clang (Release)	12m 8s
x86_64-unknown-linux-gnu/gcc (Debug)	7m 28s
x86_64-unknown-linux-gnu/gcc (Release)	17m 11s
x86_64-unknown-linux-gnu/clang (Debug)	7m 26s
x86_64-unknown-linux-gnu/clang (Release)	13m 22s
aarch64-unknown-linux-gnu/gcc (Debug)	58m 21s
aarch64-unknown-linux-gnu/gcc (Release)	45m 54s
aarch64-unknown-linux-gnu/clang (Debug)	52m 37s
aarch64-unknown-linux-gnu/clang (Release)	30m 33s
	5h 51m 57s

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