Install updated Datadog integrations as they become available

Hippolyte Henry and John Matson announce a new feature in Datadog that allows users to install updates to their Agent integrations as soon as they are released, providing access to new or updated integrations without waiting for a full release of the Agent. The `datadog-agent integration` command enables users to quickly and securely install individual integrations between Agent releases. This feature is available starting from version 6.9.0 of the Datadog Agent, which includes four subcommands: install, remove, show, and freeze. Users can upgrade their integrations to newer versions using this command, making it easier to stay up-to-date with the latest integration enhancements and updates.