v1.43.0

Changelog (v1.38.2...v1.43.0)

• bug #692 Fix ill-formed UTF-8 and array keys (@IonBazan)
• bug #693 Fix search functions that ignore the needle, offset or encoding (@IonBazan)
• bug #689 Align mb_trim(), Normalizer, odbc_connection_string_should_quote() and the uuid constants with native (@IonBazan, @nicolas-grekas)
• bug #672 Reject oversized mb_str_split lengths (@thomas-chauchefoin-tob, @nicolas-grekas)
• bug #670 Avoid excessive mb_str_pad allocations (@thomas-chauchefoin-tob, @nicolas-grekas)
• bug #666 Reject malformed UTF-8 in mb_ord (@thomas-chauchefoin-tob, @nicolas-grekas)
• bug #677 Add missing argument validation to mb_ord() and mb_chr() (@nicolas-grekas)
• bug #679 Fix endless loops in mb_convert_case() and mb_encode_numericentity() (@nicolas-grekas)
• bug #682 Reject code points above U+10FFFF in mb_check_encoding() (@nicolas-grekas)