update public suffix for .ST zone

[STRDev]

removed gov.st from list of reserved domains since this zone acting as independent on its own

• Description of Organization
• Reason for PSL Inclusion
• DNS verification via dig
• Run Syntax Checker (make test)

Description of Organization

Organization Website: https://www.nic.st
ST Registry AB
.ST domain zone administrator

Reason for PSL Inclusion

gov.st is a private zone and not reserved as subdomain. This zone is used directly by government of Sao Tome. Domain was excluded from list of reserved domains on: https://www.nic.st/terms-of-service

DNS Verification via dig

DONE

dig +short TXT _psl.gov.st
"https://github.com/publicsuffix/list/pull/890"

make test

test done

# make test
cd linter;                                \
  ./pslint_selftest.sh;                     \
  ./pslint.py ../public_suffix_list.dat;
test_allowedchars: OK
test_dots: OK
test_duplicate: OK
test_exception: OK
test_NFKC: OK
test_punycode: OK
test_section1: OK
test_section2: OK
test_section3: OK
test_section4: OK
test_spaces: OK
test_wildcard: OK

[sleevi]

I think it'd be helpful to review #815 , to understand the risks as well as the potential validation practices.

[STRDev]

I have reviewed #815 and we completely understand all risks but this is necessary due to the way how this domain is used.

[dnsguru]

@STRDev should this be moved to PRIVATE section or entirely removed? We want to measure twice and cut once on this as it can have impacts once changed. It appears you understand the impact, but there may be some delays if there is a desire to roll-back the change.
PLEASE CONFIRM

[dnsguru]

@STRDev please respond for further review or close the PR. We shall close this April 20, 2020 if no response comes by then.

[dnsguru]

closing w no response

[STRDev]

sorry for late response.
gov.st should be entirely removed from a list.
is it possible to restore this branch or we should create a new one?