fix: [go] make staticData variable threadsafe #957

Job	Run time
cpp-lib-build (macos-11, clang, ON)	1s
cpp-lib-build (macos-11, clang, OFF)	1m 29s
build (macos-11, tool)	1m 49s
cpp-lib-build (macos-11, gcc, ON)	1m 22s
build (macos-11, cpp)	12m 48s
cpp-lib-build (macos-11, gcc, OFF)	1m 34s
build (macos-11, csharp)	9m 15s
cpp-lib-build (ubuntu-20.04, clang, ON)	1m 1s
build (macos-11, dart)	5m 30s
cpp-lib-build (ubuntu-20.04, clang, OFF)	1m 9s
build (macos-11, go)	4m 24s
cpp-lib-build (ubuntu-20.04, gcc, ON)	2m 14s
build (macos-11, java)	2m 9s
cpp-lib-build (ubuntu-20.04, gcc, OFF)	2m 58s
build (macos-11, javascript)	2m 47s
cpp-lib-build (windows-2022, clang, ON)	4m 54s
build (macos-11, typescript)	7m 27s
cpp-lib-build (windows-2022, clang, OFF)	5m 43s
build (macos-11, php)	8m 3s
cpp-lib-build (windows-2022, cl)	4m 17s
build (macos-11, python3)	4m 4s
build (ubuntu-20.04, tool)	59s
build (ubuntu-20.04, cpp)	12m 56s
build (ubuntu-20.04, csharp)	5m 13s
build (ubuntu-20.04, dart)	3m 34s
build (ubuntu-20.04, go)	2m 17s
build (ubuntu-20.04, java)	1m 18s
build (ubuntu-20.04, javascript)	1m 30s
build (ubuntu-20.04, typescript)	9m 52s
build (ubuntu-20.04, php)	1m 30s
build (ubuntu-20.04, python3)	1m 10s
build (windows-2022, tool)	1m 27s
build (windows-2022, cpp)	13m 34s
build (windows-2022, csharp)	7m 15s
build (windows-2022, dart)	4m 45s
build (windows-2022, go)	5m 20s
build (windows-2022, java)	1m 50s
build (windows-2022, javascript)	2m 48s
build (windows-2022, typescript)	11m 24s
build (windows-2022, php)	2m 24s
build (windows-2022, python3)	3m 1s
	2h 59m 5s

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