Bump to 8.17 release (elastic#360)

* Bump to 8.17 release

* Update 8.16.0 to 8.16.1

Co-authored-by: Joe McElroy <[email protected]>

---------

Co-authored-by: Joe McElroy <[email protected]>

Author: yansavitski

.github/workflows/tests.yml

@@ -17,9 +17,9 @@ jobs:
       fail-fast: false
       matrix:
         es_stack:
-          - 8.15.3
-          - 8.16.0
-          - 8.17.0-SNAPSHOT
+          - 8.16.1
+          - 8.17.0
+          - 8.18.0-SNAPSHOT
     runs-on: ubuntu-latest
     services:
       elasticsearch: