build: Create a beta version.

Merge branch 'v4.0.6' into 'master'

build: update version.

See merge request public-server/server-sdk-java!26

Merge branch 'v4.0.5' into 'master'

feat: Add Chatbot and AI Agent.

See merge request public-server/server-sdk-java!24

Merge branch 'fix/name' into 'master'

fix: Modify field name.

See merge request popc/serversdk/server-sdk-java!22

build: Add Central publishing plug-ins and remove distribution manage…

…ment configurations.

Merge branch 'v4.0.2' into 'master'

feat(m-6160833461):Add an audit field of type Audit to the BaseMessage class.

See merge request popc/serversdk/server-sdk-java!20

Merge branch 'fix/filemsg_user' into 'master'

feat(m-5983088686):send RC:FileMsg support add fileType

See merge request popc/serversdk/server-sdk-java!19

Remove useless imports.

Merge branch '3.9.0' into 'master'

3.9.0

See merge request popc/serversdk/server-sdk-java!8

FIX: Solve the 3.0 jar version incompatibility issue