Docker compose and pre-release tests to net 8

[danFbach]

Pull Request

What does this PR do?

• updates docker-compose.yml from dotnet 6 to dotnet 8
• updates pre-release-tests.yml from dotnet 3 to dotnet 8
• should have done this when i updated the other dotnet versions!

PR checklist

Please check if your PR fulfills the following requirements:

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

Thank you so much for contributing to Meilisearch!

[brunoocasali]

Hey there! It looks good to me, but I don't knowwe need to let the users know... Is this mean we are deprecating usage of previous versions?

[danFbach]

hi @brunoocasali,
I'm not a docker master, but doesn't this just define docker dependencies and docker installs them for you? isn't that the point of docker - the user doesn't need to be aware of these changes?
I did this because we just bumped the rest of the repo to dotnet 8, so I thought it appropriate to also bump the docker dotnet version.

[danFbach]

@brunoocasali and to answer your question - dotnet packages are often, but not always, backwards compatible. Here's some documentation .

[brunoocasali]

I did this because we just bumped the rest of the repo to dotnet 8, so I thought it appropriate to also bump the docker dotnet version.

This message answers everything! LGTM!

[brunoocasali]

bors merge

[curquiza]

bors merge

[curquiza]

bors broken again...