<NME> logstash
<BEF> # this file is generated via https://github.com/docker-library/logstash/blob/f7d134ebe96d21adc7ff6f0bdc46e06db1a642e7/generate-stackbrew-library.sh

Maintainers: Tianon Gravi <admwiggin@gmail.com> (@tianon),
             Joseph Ferguson <yosifkit@gmail.com> (@yosifkit)
GitRepo: https://github.com/docker-library/logstash.git

Tags: 8.5.0
GitCommit: 040afba995876cf26184ef0036b89c65df200971
Directory: 7

Tags: 6.8.2
GitCommit: 7bd7406709bc3af4ab29ca7556f12be697d2c95c
Directory: 6
GitCommit: 20756581f2b7799bc39b4e47d47722de4fbf3712
Directory: 7

<MSG> Update ELK images

elasticsearch:
- https://github.com/docker-library/elasticsearch/commit/3fd5624: Update to 6.8.3
- https://github.com/docker-library/elasticsearch/commit/5d107b3: Update generated README

logstash:
- https://github.com/docker-library/logstash/commit/346baa3: Update to 6.8.3
- https://github.com/docker-library/logstash/commit/8587970: Update generated README

kibana:
- https://github.com/docker-library/kibana/commit/d22fd0d: Update to 6.8.3
- https://github.com/docker-library/kibana/commit/d2cc8d1: Update generated README

<DFF> @@ -8,6 +8,6 @@ Tags: 7.3.1
 GitCommit: 040afba995876cf26184ef0036b89c65df200971
 Directory: 7
 
-Tags: 6.8.2
-GitCommit: 7bd7406709bc3af4ab29ca7556f12be697d2c95c
+Tags: 6.8.3
+GitCommit: 346baa394828982908410b99d4d7fe25e07153e3
 Directory: 6

Update ELK images