Dockerized integration tests

[iperzic]

Description
While working on #5963, I encountered a situation where a test was passing locally, but was failing on CI. To enable running tests in an environment that is close to CI, I added a new yarn script that runs the integration tests inside a Docker container.

Issue
Fixes: N/A

Example
N/A

Context
N/A

Checks

• The new code matches the existing patterns and styles.
• The tests pass with yarn test.
• The linter passes with yarn lint. (Fix errors with yarn fix.)
• The relevant examples still work. (Run examples with yarn start.)
• You've added a changeset if changing functionality. (Add one with yarn changeset add.) N/A

[changeset-bot]

⚠️ No Changeset found

Latest commit: f8ef9a6

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