v0.55.0

• Add integration with Tembo
  • Supports Log Insights (via log streaming) and system metrics download
  • This integration is mainly intended for direct use by the Tembo Postgres
    provider (the collector is deployed by Tembo, if enabled)
• Heroku integration
  • Avoid unnecessary error messages related to state file and reload mechanism
• Accept PGA_API_BASE_URL env var in addition to PGA_API_BASEURL
  • Going forward we recommend using PGA_API_BASE_URL when configuring the
    collector for sending to pganalyze Enterprise Server installations
• Syslog handler: Allow leading spaces before parts regexp
  • When configuring rsyslogd for RFC5424 output with the
    RSYSLOG_SyslogProtocol23Format template, it adds a leading space that we
    didn't anticipate correctly.
• Relation stats: Call pg_stat_get_* directly instead of using system views
  • The collecror now calls the underlying pg_stat_get* functions directly,
    which has the same effect as querying the pg_stat_all_tables and
    pg_statio_all_tables views (as they are simple views without any security
    barrier), but results in better performance when a table filter
    (ignore_schema_regexp / IGNORE_SCHEMA_REGEXP) is active