[Timelion] Changes the version of removal message

[stratoula]

Summary

Part of https://github.com/elastic/kibana-team/issues/298

As we are going to remove the timelion app on 7.16 I changed the deprecation message on our callout and docs. I don't mention the exact minor but use the latest 7.x minor in case it changes.

Ui message:

Server message:

Docs preview: https://kibana_100022.docs-preview.app.elstc.co/guide/en/kibana/master/timelion.html

Checklist

Delete any items that are not applicable to this PR.

• Any text added follows EUI's writing guidelines, uses sentence case text and includes i18n support
• Documentation was added for features that require explanation or tutorials

[elasticmachine]

Pinging @elastic/kibana-app (Team:KibanaApp)

[stratoula]

@KOTungseth are you ok with the text? The change is
will be removed in 8.0 to will be removed in the latest 7.x minor

cc @timductive @AlonaNadler

[KOTungseth]

I tweaked the wording a little bit, but otherwise, LGTM!

[stratoula]

@elasticmachine merge upstream

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 94ebbf4
• Storybooks Preview
• Documentation Changes

Metrics [docs]

Public APIs missing comments

Total count of every public API that lacks a comment. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats comments for more detailed information.

id	before	after	diff
indexManagement	157	-	-157

Any counts in public APIs

Total count of every any typed public API. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats any for more detailed information.

id	before	after	diff
indexManagement	12	-	-12

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
timelion	339.2KB	339.3KB	+23.0B

Public APIs missing exports

Total count of every type that is part of your API that should be exported but is not. This will cause broken links in the API documentation system. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats exports for more detailed information.

id	before	after	diff
indexManagement	4	-	-4

Unknown metric groups

API count

id	before	after	diff
indexManagement	162	-	-162

References to deprecated APIs

id	before	after	diff
canvas	29	25	-4
crossClusterReplication	8	6	-2
fleet	22	20	-2
globalSearch	4	2	-2
indexManagement	12	-	-12
infra	261	149	-112
lens	67	45	-22
licensing	18	15	-3
maps	286	208	-78
ml	121	115	-6
monitoring	109	56	-53
stackAlerts	101	95	-6
total			-302

History

• 💚 Build #125955 succeeded 8cda451
• 💚 Build #125954 succeeded 141763c
• 💚 Build #125775 succeeded 541a47d
• 💚 Build #125771 succeeded 91185d0

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

[timductive]

copy changes look good to me.