Bump mimalloc from 0.1.29 to 0.1.39 in /rust/sbp2json (#1463) #1818

Job	Run time
Ubuntu 20.04 (Build: Debug, Compilers: clang-6.0/clang++-6.0, Shared Library: false)	14m 9s
macOS	22m 42s
Ubuntu 20.04 (Build: Release, Compilers: gcc-7/g++-7, Shared Library: false)	19m 30s
Ubuntu 20.04 (Build: Debug, Compilers: gcc-7/g++-7, Shared Library: false)	14m 25s
Ubuntu 20.04 (Build: Debug, Compilers: gcc-7/g++-7, Shared Library: true)	15m 1s
Ubuntu 20.04 (Build: Release, Compilers: clang-6.0/clang++-6.0, Shared Library: false)	19m 37s
Ubuntu 20.04 (Build: Release, Compilers: clang-6.0/clang++-6.0, Shared Library: true)	20m 16s
Ubuntu 20.04 (Build: Release, Compilers: gcc-7/g++-7, Shared Library: true)	19m 50s
Test Big Endian	7m 48s
ASAN	9m 46s
Bazel	8m 43s
UBSAN	9m 54s
Windows Latest (Generator: MinGW Makefiles, Shared Library: true)	34m 29s
Ubuntu 20.04 (Build: Debug, Compilers: clang-6.0/clang++-6.0, Shared Library: true)	14m 9s
Windows Latest (Generator: Visual Studio 17 2022, Shared Library: false)	14m 25s
Windows Latest (Generator: Visual Studio 17 2022, Shared Library: true)	14m 36s
Windows Latest (Generator: MinGW Makefiles, Shared Library: false)	36m 41s
	4h 56m 1s

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