Replace certificates as they were invalid #202

Job	Run time
build-all	3m 22s
tests (es, -Pelasticsearch8, es8-java8, 8)	28m 39s
tests (es, -Pelasticsearch7, es7-java8, 8)	28m 33s
tests (es, -Pelasticsearch6, es6-java8, 8)	27m 47s
tests (es, -Pelasticsearch60, es60-java8, 8)	27m 55s
tests (es, -Pjava-11, -Pelasticsearch8, es8, 11)	29m 20s
tests (es, -Pjava-11, -Pelasticsearch7, es7, 11)	28m 28s
tests (es, -Pjava-11, -Pelasticsearch6, es6, 11)	27m 35s
tests (es, -Pjava-11, -Pelasticsearch60, es60, 11)	27m 8s
	3h 48m 47s

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