fix: remove unused badger and default agent settings

[luohoufu]

What does this PR do

remove unused badger and default agent settings

Rationale for this change

This pull request includes changes to the agent.yml file to update the configuration for the agent. The most important changes involve removing the badger configuration and adding new settings for the agent's IP pattern, labels, and tags.

Configuration changes:

• agent.yml: Removed the badger configuration, which included settings for mem_table_size, value_log_max_entries, value_log_file_size, and value_threshold.
• agent.yml: Added new settings for the agent, including major_ip_pattern, labels with an environment label set to "prod", and tags with values linux and x86.

Standards checklist

• The PR title is descriptive
• The commit messages are semantic
• Necessary tests are added
• Updated the release notes
• Necessary documents have been added if this is a new feature
• Performance tests checked, no obvious performance degradation

[medcl]

the default value maybe not the user wanted