automation: Update community.docker to version 3.4.2

This MR contains the following updates:

Package	Type	Update	Change
community.docker	galaxy-collection	patch	3.4.0 -> 3.4.2

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Release Notes

ansible-collections/community.docker

v3.4.2

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Release Summary

Bugfix release.

Bugfixes

• docker_prune - return correct value for changed. So far the module always claimed that nothing changed (https://github.com/ansible-collections/community.docker/pull/593).

v3.4.1

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Release Summary

Regular bugfix release.

Bugfixes

• docker_api connection plugin, docker_container_exec, docker_container_copy_into - properly close socket to Daemon after executing commands in containers (https://github.com/ansible-collections/community.docker/pull/582).
• docker_container - fix tmfs_size and tmpfs_mode not being set (https://github.com/ansible-collections/community.docker/pull/580).
• various plugins and modules - remove unnecessary imports (https://github.com/ansible-collections/community.docker/pull/574).

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