Mapping ILM phases

[l-trotta]

fixes #2727

[github-actions]

Following you can find the validation results for the APIs you have changed.

API	Status	Request	Response
ilm.delete_lifecycle	🟢	2/2	2/2
ilm.explain_lifecycle	🟢	5/5	5/5
ilm.get_lifecycle	🔴	8/8	0/8
ilm.get_status	🟢	4/4	4/4
ilm.migrate_to_data_tiers	⚪	Missing test	Missing test
ilm.move_to_step	⚪	Missing test	Missing test
ilm.put_lifecycle	🔴	2/6	6/6
ilm.remove_policy	🟢	5/5	5/5
ilm.retry	⚪	Missing test	Missing test
ilm.start	⚪	Missing test	Missing test
ilm.stop	🟢	4/4	4/4

You can validate these APIs yourself by using the make validate target.

[l-trotta]

The validator is complaining about the missing action "Freeze", but that was removed in 8.0 and should be removed from the tests.

[github-actions]

Following you can find the validation results for the APIs you have changed.

API	Status	Request	Response
ilm.delete_lifecycle	🟢	2/2	2/2
ilm.explain_lifecycle	🟢	5/5	5/5
ilm.get_lifecycle	🔴	8/8	0/8
ilm.get_status	🟢	4/4	4/4
ilm.migrate_to_data_tiers	⚪	Missing test	Missing test
ilm.move_to_step	⚪	Missing test	Missing test
ilm.put_lifecycle	🔴	2/6	6/6
ilm.remove_policy	🟢	5/5	5/5
ilm.retry	⚪	Missing test	Missing test
ilm.start	⚪	Missing test	Missing test
ilm.stop	🟢	4/4	4/4

You can validate these APIs yourself by using the make validate target.

[github-actions]

The backport to 8.15 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-8.15 8.15
# Navigate to the new working tree
cd .worktrees/backport-8.15
# Create a new branch
git switch --create backport-2737-to-8.15
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 1b736c6ad35772654162f5731c2bb6b4614fae85
# Push it to GitHub
git push --set-upstream origin backport-2737-to-8.15
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-8.15

Then, create a pull request where the base branch is 8.15 and the compare/head branch is backport-2737-to-8.15.