Set docker-compose yaml version to 3.11 for slides search

[alexeygrigorev]

Fixes this:

$ docker-compose up
ERROR: Version "3.11.9" in ".\docker-compose.yml" is invalid.

Introduction

To contribute code to the Pathway project, start by discussing your proposed changes on Discord or by filing an issue.
Once approved, follow the fork + pull request model against the main branch, ensuring you've signed the contributor license agreement.

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• Bug fix (non-breaking change which fixes an issue)
• New feature or improvement (non-breaking change which adds functionality)
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Checklist:

• My code follows the code style of this project,
• My change requires a change to the documentation,
• I described the modification in the CHANGELOG.md file.

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All committers have signed the CLA.

[berkecanrizai]

Hey @alexeygrigorev thanks for noticing and for the PR, since version is obsolete as per this doc, we decided drop it.

Changes will be reflected to this repo very soon. I'm closing this now, but thanks again.