[fix] Cipher#reset when key not set (jruby/jruby#5776) #322

Job	Run time
maven-test (jruby-9.4.14.0, 21, temurin)	2m 25s
maven-test (8, temurin, jruby-9.2.19.0)	2m 37s
maven-test (jruby-9.4.14.0, 8, temurin)	2m 36s
maven-test (11, temurin, jruby-9.3.13.0)	2m 57s
maven-test (21, oracle, jruby-9.3.13.0)	2m 7s
maven-test (21, corretto, jruby-head)	2m 34s
maven-test (jruby-9.4.14.0, 25, temurin)	2m 52s
maven-test (24, zulu, jruby-10.0.1.0)	2m 38s
maven-test (11, zulu, jruby-9.4.5.0)	2m 40s
maven-test (jruby-9.4.14.0, 11, temurin)	2m 42s
maven-test (21, oracle, jruby-9.4.8.0)	2m 38s
maven-test (8, temurin, jruby-9.3.3.0)	2m 19s
maven-test (11, temurin, jruby-9.2.20.1)	3m 0s
maven-test (25, temurin, jruby-10.0.3.0)	2m 36s
maven-test (21, temurin, jruby-10.0.4.0)	2m 34s
	39m 15s

Provide feedback