chore: bump version to 1.3.3 (#99) #395

Job	Run time
macos-latest, cmake, gcc, easy backend	43s
macos-latest, cmake, gcc, gmp backend	50s
macos-latest, cmake, clang, easy backend	35s
macos-latest, cmake, clang, gmp backend	32s
macos-latest, autotools, gcc, easy backend	1m 16s
macos-latest, autotools, gcc, gmp backend	1m 0s
macos-latest, autotools, clang, easy backend	1m 8s
macos-latest, autotools, clang, gmp backend	1m 26s
ubuntu-20.04, cmake, gcc, easy backend	2m 9s
ubuntu-20.04, cmake, gcc, gmp backend	1m 25s
ubuntu-20.04, cmake, clang, easy backend	1m 31s
ubuntu-20.04, cmake, clang, gmp backend	1m 37s
ubuntu-20.04, autotools, gcc, easy backend	2m 32s
ubuntu-20.04, autotools, gcc, gmp backend	2m 9s
ubuntu-20.04, autotools, clang, easy backend	2m 24s
ubuntu-20.04, autotools, clang, gmp backend	2m 10s
	23m 27s

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