[deps] upgrade BC to version 1.81 #263

Job	Run time
maven-test (jruby-9.4.13.0, 21, temurin)	1m 55s
maven-test (jruby-9.4.13.0, 11, temurin)	2m 11s
maven-test (jruby-9.4.13.0, 23, temurin)	2m 9s
maven-test (11, zulu, jruby-9.4.5.0)	1m 53s
maven-test (8, temurin, jruby-9.3.3.0)	1m 57s
maven-test (11, temurin, jruby-9.2.20.1)	2m 7s
maven-test (21, oracle, jruby-9.3.13.0)	1m 45s
maven-test (11, temurin, jruby-9.3.13.0)	1m 51s
maven-test (21, corretto, jruby-head)	2m 26s
maven-test (21, oracle, jruby-9.4.8.0)	2m 18s
maven-test (8, temurin, jruby-9.2.19.0)	2m 19s
maven-test (jruby-9.4.13.0, 8, temurin)	2m 24s
maven-test (21, temurin, jruby-10.0.1.0)	2m 3s
maven-test (24, zulu, jruby-10.0.1.0)	2m 12s
	29m 30s

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