chore(vectorstores): bump testcontainers-go dependency

[mdelapenya]

• chore: bump testcontainers to the latest release (v0.34.0)
• chore: update deprecated APIs

PR Checklist

• Read the Contributing documentation.
• Read the Code of conduct documentation.
• Name your Pull Request title clearly, concisely, and prefixed with the name of the primarily affected package you changed according to Good commit messages (such as memory: add interfaces for X, Y or util: add whizzbang helpers).
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. Fixes #123).
• Describes the source of new concepts.
• References existing implementations as appropriate.
• Contains test coverage for new functions.
• Passes all golangci-lint checks.

What does this PR do?

It bumps testcontainers-go to the latest release version: v0.34.0, using the Run functions instead of the deprecated RunContainer ones. It also uses the new CleanupContainer functions for cleaning up containers.