Log Message:
postgres_exporter: update to 0.15.0 (security)

This fixes the following vulnerabilities:

Vulnerability: GO-2023-1571
    Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net
  More info: https://pkg.go.dev/vuln/GO-2023-1571
  Module: golang.org/x/net
    Found in: golang.org/x/net@v0.0.0-20220225172249-27dd8689420f
    Fixed in: golang.org/x/net@v0.7.0

Vulnerability: GO-2022-1130
    Authentication bypass in github.com/prometheus/exporter-toolkit
  More info: https://pkg.go.dev/vuln/GO-2022-1130
  Module: github.com/prometheus/exporter-toolkit
    Found in: github.com/prometheus/exporter-toolkit@v0.7.1
    Fixed in: github.com/prometheus/exporter-toolkit@v0.8.2

0.15.0
------
- Add 1kB and 2kB units
- Add error log when probe collector creation fails
- Fix test build failures on 32-bit arch
- Adjust collector to use separate connection per scrape

0.14.0
------
- Add state label to pg_process_idle_seconds
- Change database connections to one per scrape

0.13.0
------
BREAKING CHANGES:

Please note, the following features are deprecated and may be removed in a \ 
future release:

    auto-discover-databases
    extend.query-path
    constantLabels
    exclude-databases
    include-databases

This exporter is meant to monitor PostgresSQL servers, not the user \ 
data/databases. If
you need a generic SQL report exporter \ 
https://github.com/burningalchemist/sql_exporter
is recommended.

0.12.0
------
BREAKING CHANGES:

This release changes support for multiple postgres servers to use the
multi-target exporter pattern. This makes it much easier to monitor multiple
PostgreSQL servers from a single exporter by passing the target via URL
params. See the Multi-Target Support section of the README.