build: Prepare for release 1.0.20 #377

Job	Run time
code-format	34s
check_vvl	1m 52s
linux (undefined behavior sanitizer, debug)	26m 14s
linux (address sanitizer, release, custom_hash_map ON )	43m 10s
linux (thread sanitizer, release, custom_hash_map ON )	23m 2s
Ubuntu Backcompat	13m 22s
mingw	21m 6s
windows (amd64)	28m 34s
windows (amd64_x86)	27m 49s
linux (address sanitizer, release, custom_hash_map OFF )	44m 59s
	3h 50m 42s

Provide feedback