When the Kibana version if 9.0.0, almost no packages are returned by EPR, e.g.

https://epr.elastic.co/search?kibana.version=9.0.0

This request only returns the custom logs integration. Adding &prerelease=true makes more packages show up, but it's not much better.

This is blocking Kibana's setup process for the 9.0.0 branch, and version constraints should be permitting 9.0.0 for the Kibana version and showing packages as normal.

Tasks

• @mrodm - Ensure elastic-package can be used to test integrations against the Elastic stack running on 9.0.0 (blocked by Update version to 9.0.0 kibana#192040 and availability of 9.0 snapshots): Add initial support for Elastic Stack 9.x elastic-package#2102
• @mrodm - Update integrations CI to support running tests against a 9.0.0 stack version [CI] Add support for running tests with stack 9.0.0 integrations#11138
• @mrodm - Create a PR that bumps all packages' kibana.version constraint to include || ^9.0.0
• @kpollich - Send an email to elastic-packages@ notifying package maintainers of the PR above. Set a TTL after which the PR will be merged and all bumped packages will become visible + installable in 9.0.0 stacks.