Update test suite

[kavitharaju]

Pulls the latest test samples, after the fixes and clarification given at committee's test suite, as on June 7, 2023.

Testing stats on parsing(Using the existing grammar implementation of usfm-grammar)

• Parsing tests: All 380 tests passing
  • pass/fail values given for 34 samples are over-ridded (dropped from 88 before)
  • 4 common causes for the above 34 and few one-off cases identifed
    • Missing significant spaces after markers like \p, \q, \m and \b
    • Attributes (custom and others) not used as per spec
    • Missing content in markers like \ide, \rem, \toc1, \ip
    • Missing \p or other body paragraph markers (usually after \s)
• JSON Conversion tests, with existing JSON schema(not USJ) and grammar: All passing expect 2
• List conversion: All passing expect 1
• USX conversion: 20 failing, with the rest passing.
• Comparing generated USX with testsuite's: 73 failing

This PR also include the following changes

• Temporarily changes the tests on CI/CD to run only parsing tests, not conversion test
• Consider "MISSING" in syntax tree as a valid error report in test (until we are able to report them as error in parser itself Missing elements are not reported as error #173 )
• Handle use of \qt(as not milestone), \k-s, \k-e and independant \xt in tests were checking for all markers present in syntax tree.
• Remove old list of doubtful USFMs, that were being excluded from test

[joelthe1]

LGTM 👍