Update ELK images

elasticsearch:
- https://github.com/docker-library/elasticsearch/commit/67c05f6: Update to 7.12.1

logstash:
- https://github.com/docker-library/logstash/commit/d615c71: Update to 7.12.1

kibana:
- https://github.com/docker-library/kibana/commit/46b36d2: Update to 7.12.1

library/elasticsearch

@@ -4,9 +4,9 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
              Joseph Ferguson <[email protected]> (@yosifkit)
 GitRepo: https://github.com/docker-library/elasticsearch.git
 
-Tags: 7.12.0
+Tags: 7.12.1
 Architectures: amd64, arm64v8
-GitCommit: 7a4ec49b0bee1e610e79076c5941b9376acba764
+GitCommit: 67c05f68cd72dd1660feb24692d044747e472666
 Directory: 7
 
 Tags: 6.8.15

library/kibana

@@ -4,8 +4,8 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
              Joseph Ferguson <[email protected]> (@yosifkit)
 GitRepo: https://github.com/docker-library/kibana.git
 
-Tags: 7.12.0
-GitCommit: 357513fc65a890add229f11f9379697f22af9c28
+Tags: 7.12.1
+GitCommit: 46b36d2319d45441c35e67075106d81856fca123
 Directory: 7
 
 Tags: 6.8.15

library/logstash

@@ -4,8 +4,8 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
              Joseph Ferguson <[email protected]> (@yosifkit)
 GitRepo: https://github.com/docker-library/logstash.git
 
-Tags: 7.12.0
-GitCommit: 5cbbe444c8ff8bf931fdf9177bb879398c47dd44
+Tags: 7.12.1
+GitCommit: d615c7193d244f2274841f73acd0df804b07fd17
 Directory: 7
 
 Tags: 6.8.15