PG Exporter v0.8.0

VonngAuthor of PG Exporter and Pigsty, working on PostgreSQL infrastructure and monitoring.

Changes

• Add PgBouncer 1.24 new metrics support (stat, pool, database)
• Fix: 310-pg_size.yml fails if log dir not set properly #64 by @Süleyman Vurucu
• Build with the latest Go 1.24 and bump all dependencies
• Refactor logging with the standard log/slog instead of go-kit Full changelog