Update testcontainer.version to v1.21.0

This MR contains the following updates:

Package	Type	Update	Change
org.testcontainers:postgresql (source)	test	minor	1.20.6 -> 1.21.0
org.testcontainers:junit-jupiter (source)	test	minor	1.20.6 -> 1.21.0

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Release Notes

testcontainers/testcontainers-java (org.testcontainers:postgresql)

v1.21.0

Compare Source

What's Changed

• Fix typo in LGTM container method (#​10189) @​jaydeluca
• Pass start command required in Solr 10 (#​10174) @​epugh
• [solr] Replace "create_core" with "create" command (#​10172) @​epugh
• Update docs version to ${GITHUB_REF##*/} (#​10063) @​github-actions
• Update testcontainers version to ${GITHUB_REF##*/} (#​10062) @​github-actions

Breaking API changes

• Remove spock-core from spock module (#​10069) @​eddumelendez
• Uses clickhouse/clickhouse-server as Docker Image in ClickHouseProvider (#​8738) @​linghengqian

Features & Enhancements

• Expose Tempo in LgtmContainer (#​10192) @​jaydeluca
• Allow spock tests to be skipped when Docker is unavailable (#​10180) @​eddumelendez
• Support new chromadb api version (#​10170) @​dev-jonghoonpark
• Add default database name to MongoDB Atlas (#​10034) @​blancqua
• [servicebus] Skip waiting for sql to be ready (#​10092) @​eddumelendez
• Support additional flags in FirestoreEmulatorContainer (#​10067) @​eddumelendez

Deprecations

• Deprecate getUserPass and add getPassword (#​10064) @​eddumelendez

Bug Fixes

• Fix connection leak in JdbcDatabaseDelegate (#​9662) @​froque
• Allow configuring the AlwaysPullPolicy (#​10188) @​sebastian-steiner

Documentation

• Add DockerModelRunnerContainer to core (#​10183) @​kiview
• Allow configuring the AlwaysPullPolicy (#​10188) @​sebastian-steiner
• Fix Apache Solr link (#​10171) @​epugh
• Remove incubator note from Solr docs (#​10173) @​epugh
• Remove linked-container (#​10065) @​eddumelendez

Housekeeping

• Add SFTP host key check example (#​10127) @​julianladisch
• Remove linked-container (#​10065) @​eddumelendez

Dependency updates

• Update Gradle Wrapper from undefined to 8.13 (#​10033) @​github-actions
• Update docker-java version to 3.4.2 (#​10071) @​eddumelendez

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