logs.nimbus: increase total_fields.limit to 1500

This is a special case since these logs are all custom JSON, so
increasing this is fine for now. I can't control what they put in logs.
https://discuss.elastic.co/t/approaches-to-deal-with-limit-of-total-fields-1000-in-index-has-been-exceeded/241039

Signed-off-by: Jakub Sokołowski <jakub@status.im>

ansible/group_vars/logs.nimbus.yml

@@ -35,6 +35,8 @@ es_master_nodes: |
 es_number_of_shards: 3
 # Since Nimbus logs are low-value we don't need replicas.
 es_number_of_replicas: 0
+# Bump due to large number of fields in JSON logs.
+es_mapping_total_fields_limit: 1500
 
 # JVM Memory settings
 es_jvm_g1gc_enabled: true

ansible/requirements.yml

@@ -95,7 +95,7 @@
 
 - name: elasticsearch
   src: git@github.com:status-im/infra-role-elasticsearch.git
-  version: a989381d59e1e0fdeab3a7911a0124a19f68698a
+  version: 7ec1d25604800e0b5b3172d08e938bef564a2c22
   scm: git
 
 - name: elasticsearch-lb