Add an option to use index swap in import command

[thislg]

Pull Request

Related issue

Fixes #277

What does this PR do?

• This PR adds an option to use index swap to prevent downtime while importing data in an existing index.

PR checklist

Please check if your PR fulfills the following requirements:

• [x] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
• [x] Have you read the contributing guidelines?
• [x] Have you made sure that the title is accurate and descriptive of the changes?

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 88.72%. Comparing base (3ecb667) to head (83dc2f8). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #354 +/- ## ============================================ + Coverage 87.77% 88.72% +0.95% Complexity 1 1 ============================================ Files 20 20 Lines 875 905 +30 ============================================ + Hits 768 803 +35 + Misses 107 102 -5 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[norkunas]

bors merge

[meili-bors[bot]]

Build succeeded:

• Code style
• integration-tests (PHP 7.4) (Symfony 5.4.*)
• integration-tests (PHP 8.1) (Symfony 6.4.*)
• integration-tests (PHP 8.2) (Symfony 6.4.*)
• integration-tests (PHP 8.2) (Symfony 7.0.*)
• integration-tests (PHP 8.2) (Symfony 7.1.*)
• integration-tests (PHP 8.3) (Symfony 6.4.*)
• integration-tests (PHP 8.3) (Symfony 7.0.*)
• integration-tests (PHP 8.3) (Symfony 7.1.*)

[norkunas]

Thank you @thislg

[thislg]

Thank you for your time @norkunas