CI: Update the default certificates

Add "localhost" as a valid hostname to the certificates.

Example curl command:

    $ docker run -it --rm --network elasticsearch --volume $PWD/.jenkins/certs/ca.crt:/ca.crt appropriate/curl --cacert /ca.crt https://elastic:elastic@es1:9200

(cherry picked from commit e9eb76d)

Author: karmi

.jenkins/certs/ca.crt

@@ -1,20 +1,20 @@
 -----BEGIN CERTIFICATE-----
-MIIDSTCCAjGgAwIBAgIUIwN+0zglsexRKwE1RGHvlCcmrdwwDQYJKoZIhvcNAQEL
+MIIDSTCCAjGgAwIBAgIUGqPn96yNRroRX2uBi+m999M4GwIwDQYJKoZIhvcNAQEL
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+nehNyMis+kGplpUspadB+HUKt6uaCwR+ELOPyhU=
 -----END CERTIFICATE-----

.jenkins/certs/elasticsearch.crt

@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----
+MIIDWTCCAkGgAwIBAgIVAPoJuUxY401b3h8Rk0FDXBSelZtHMA0GCSqGSIb3DQEB
+CwUAMDQxMjAwBgNVBAMTKUVsYXN0aWMgQ2VydGlmaWNhdGUgVG9vbCBBdXRvZ2Vu
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+4IGbNVSm+QLasvqoqw2bjdvwdqgriKVZOqAZJXp43PQxB90cRnBs88pnZfr6
+-----END CERTIFICATE-----

.jenkins/certs/elasticsearch.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEowIBAAKCAQEArnOQq7xP5vuvV2i66/ksATv4XL64a9QbXQ82J/LENk/JqPoH
+T4sDrYib7YDpjL2PaWYOBd2Gjqk4G+N060/9vctMyVaRFbjn+I9R6rdBwkGmh5AJ
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+nR+AYGo0e/1/t2yvKD8C+FNaGrjrLlFFuUeN4QUdDEmvULErXcGE
+-----END RSA PRIVATE KEY-----

.jenkins/certs/testnode.crt

@@ -267,17 +267,17 @@ else
 	$(eval xpack_env += --env "xpack.security.enabled=true")
 	$(eval xpack_env += --env "xpack.security.http.ssl.enabled=true")
 	$(eval xpack_env += --env "xpack.security.http.ssl.verification_mode=certificate")
-	$(eval xpack_env += --env "xpack.security.http.ssl.key=certs/testnode.key")
-	$(eval xpack_env += --env "xpack.security.http.ssl.certificate=certs/testnode.crt")
+	$(eval xpack_env += --env "xpack.security.http.ssl.key=certs/elasticsearch.key")
+	$(eval xpack_env += --env "xpack.security.http.ssl.certificate=certs/elasticsearch.crt")
 	$(eval xpack_env += --env "xpack.security.http.ssl.certificate_authorities=certs/ca.crt")
 	$(eval xpack_env += --env "xpack.security.http.ssl.verification_mode=none")
 	$(eval xpack_env += --env "xpack.security.transport.ssl.enabled=true")
-	$(eval xpack_env += --env "xpack.security.transport.ssl.key=certs/testnode.key")
-	$(eval xpack_env += --env "xpack.security.transport.ssl.certificate=certs/testnode.crt")
+	$(eval xpack_env += --env "xpack.security.transport.ssl.key=certs/elasticsearch.key")
+	$(eval xpack_env += --env "xpack.security.transport.ssl.certificate=certs/elasticsearch.crt")
 	$(eval xpack_env += --env "xpack.security.transport.ssl.certificate_authorities=certs/ca.crt")
 	$(eval xpack_env += --env "xpack.security.transport.ssl.verification_mode=none")
-	$(eval xpack_volumes += --volume "$(PWD)/.jenkins/certs/testnode.crt:/usr/share/elasticsearch/config/certs/testnode.crt")
-	$(eval xpack_volumes += --volume "$(PWD)/.jenkins/certs/testnode.key:/usr/share/elasticsearch/config/certs/testnode.key")
+	$(eval xpack_volumes += --volume "$(PWD)/.jenkins/certs/elasticsearch.crt:/usr/share/elasticsearch/config/certs/elasticsearch.crt")
+	$(eval xpack_volumes += --volume "$(PWD)/.jenkins/certs/elasticsearch.key:/usr/share/elasticsearch/config/certs/elasticsearch.key")
 	$(eval xpack_volumes += --volume "$(PWD)/.jenkins/certs/ca.crt:/usr/share/elasticsearch/config/certs/ca.crt")
 endif
 endif