ESQL: prefix duplicates of existing types

[Anaethelion]

Followup to #4189

[github-actions]

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

API	Status	Request	Response
esql.async_query_delete	⚪	Missing test	Missing test
esql.async_query_get	⚪	Missing test	Missing test
esql.async_query_stop	⚪	Missing test	Missing test
esql.async_query	⚪	Missing test	Missing test
esql.query	⚪	294/294	Missing test

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

[github-actions]

The backport to 9.0 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-9.0 9.0
# Navigate to the new working tree
cd .worktrees/backport-9.0
# Create a new branch
git switch --create backport-4245-to-9.0
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 89118f45698a7edec4d2d274b9d67da08a47a49f
# Push it to GitHub
git push --set-upstream origin backport-4245-to-9.0
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-9.0

Then, create a pull request where the base branch is 9.0 and the compare/head branch is backport-4245-to-9.0.