chore(jenkins): Update Jenkins plugins (#1947)

Author: gounthar

dockerfiles/plugins.txt

@@ -63,7 +63,7 @@ scm-api:724.v7d839074eb_5c
 script-security:1385.v7d2d9ec4d909
 snakeyaml-api:2.5-143.v93b_c004f89de
 ssh-credentials:361.vb_f6760818e8c
-ssh-slaves:3.1095.veec561d48a_a_c
+ssh-slaves:3.1096.v0b_cc466e4323
 sshd:3.374.v19b_d59ce6610
 structs:362.va_b_695ef4fdf9
 timestamper:1.30
@@ -73,7 +73,7 @@ variant:70.va_d9f17f859e0
 workflow-aggregator:608.v67378e9d3db_1
 workflow-api:1384.vdc05a_48f535f
 workflow-basic-steps:1098.v808b_fd7f8cf4
-workflow-cps:4238.va_6fb_65c1f699
+workflow-cps:4250.v2eecc0881a_e6
 workflow-durable-task-step:1464.v2d3f5c68f84c
 workflow-job:1559.va_a_533730b_ea_d
 workflow-multibranch:821.vc3b_4ea_780798