golang: v↑ go1.16 (1.16.8 -> 1.16.10)

Going Go1.16.8 -> Go1.16.10 brings in fixes to compiler, runtime and stdlib
including security fixes to linker, archive/zip package.

https://golang.org/doc/devel/release.html#go1.16.minor

Tested via:

- SlapOS.SoftwareReleases.IntegrationTest.Python2 (https://nexedijs.erp5.net/#/test_result_module/20211110-4DA2B2E), and
- SlapOS.SoftwareReleases.IntegrationTest.Python3 (https://nexedijs.erp5.net/#/test_result_module/20211110-40489859)

component/golang/buildout.cfg

@@ -46,8 +46,8 @@ environment-extra =
 
 [golang1.16]
 <= golang-common
-url = https://golang.org/dl/go1.16.8.src.tar.gz
-md5sum = 92e69a5e1bb6ea5e7498d12d03160032
+url = https://golang.org/dl/go1.16.10.src.tar.gz
+md5sum = 49f0a54f0bdcba297bac194d8dafe431
 
 # go1.16 needs go1.4 to bootstrap
 environment-extra =