tools: update certdata.txt

This is the certdata.txt[0] from NSS 3.43, released on 2019-03-15.

This is the version of NSS that will ship in Firefox 67 on
2019-03-19.

[0] https://hg.mozilla.org/projects/nss/raw-file/NSS_3_43_RTM/lib/ckfw/builtins/certdata.txt

PR-URL: #27374
Backport-PR-URL: #29137
Reviewed-By: Ben Noordhuis <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>