How do I set the encoding for non-Latin characters in zonky Embedded?

Question

I have a spring-boot application. I use a postgres database. Migration of the database is done with liquibase. When executing liquibase changesets I fill some tables, with some characters. For testing, I found a technology such as Zonky Embedded Postgres. And when I test the logic of my application on a real database, the application works correctly.

The problem is that when I run the tests, the zonky test database gets strange characters through liquibase. It looks like the encoding for non Latin letters is off.

For example. Expected georgian letter: ა; actually: бѓђ

But everything is fine with English letters and the coding does not fly off.

What may be the problem, please advise?

My spring-boot-test annotations on the class:

@SpringBootTest(
    webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT
)
@ActiveProfiles("test")
@TestPropertySource(locations = ["classpath:application-test.yml"])
@AutoConfigureEmbeddedDatabase(
    provider = AutoConfigureEmbeddedDatabase.DatabaseProvider.ZONKY,
    type = AutoConfigureEmbeddedDatabase.DatabaseType.POSTGRES,
    refresh = AutoConfigureEmbeddedDatabase.RefreshMode.AFTER_EACH_TEST_METHOD
)