Ruby

Bump ruby-lsp from 0.23.17 to 0.23.19 in /steep #6786

Job	Run time
valgrind	52m 32s
C99_compile (3.4)	1m 1s
test (3.1, test)	2m 45s
C99_compile (head)	1m 21s
test (3.2, test)	2m 57s
test (3.3, test)	3m 17s
test (3.4, test)	2m 58s
test (head, test)	3m 29s
test (head, stdlib_test rubocop)	2m 54s
test (3.4, stdlib_test)	2m 14s
test (3.4, test, --enable-frozen-string-literal)	3m 6s
test (3.4, stdlib_test, --enable-frozen-string-literal)	2m 9s
test (3.4, lexer templates compile confirm_lexer confirm_templates)	3m 33s
test (3.4, rubocop validate test_doc build test_generate_stdlib raap)	2m 40s
test (3.4, typecheck_test)	1m 6s
	1h 28m 2s

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