Bump prometheus_exporter from 2.2.0 to 2.3.0

Bumps [prometheus_exporter](https://github.com/discourse/prometheus_exporter) from 2.2.0 to 2.3.0.
- [Release notes](https://github.com/discourse/prometheus_exporter/releases)
- [Changelog](https://github.com/discourse/prometheus_exporter/blob/main/CHANGELOG)
- [Commits](discourse/prometheus_exporter@v2.2.0...v2.3.0)

---
updated-dependencies:
- dependency-name: prometheus_exporter
  dependency-version: 2.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Gemfile.lock

@@ -368,7 +368,7 @@ GEM
       dachsfisch (~> 1.0.0)
       nokogiri (>= 1.10.2, < 2.0.0)
       rubyzip (>= 1.2.2, < 3.0.0)
-    prometheus_exporter (2.2.0)
+    prometheus_exporter (2.3.0)
       webrick
     psych (5.2.6)
       date
@@ -911,7 +911,7 @@ CHECKSUMS
   prettyprint (0.2.0) sha256=2bc9e15581a94742064a3cc8b0fb9d45aae3d03a1baa6ef80922627a0766f193
   prism (1.4.0) sha256=dc0e3e00e93160213dc2a65519d9002a4a1e7b962db57d444cf1a71565bb703e
   proformaxml (1.5.2) sha256=486b2e088f5b87926c499f45d9a8f3a4c74e37bae1b75fd984daf3e06cb305b8
-  prometheus_exporter (2.2.0) sha256=38a71af112da26b588f67948e5dcc32d539b26cfbf25115e92caca8db8437497
+  prometheus_exporter (2.3.0) sha256=bfe5dd9bce74e41e302c611a6d290fc86fba31441d6a88930fb80dd458fe2875
   psych (5.2.6) sha256=814328aa5dcb6d604d32126a20bc1cbcf05521a5b49dbb1a8b30a07e580f316e
   public_suffix (6.0.2) sha256=bfa7cd5108066f8c9602e0d6d4114999a5df5839a63149d3e8b0f9c1d3558394
   puma (6.6.1) sha256=b9b56e4a4ea75d1bfa6d9e1972ee2c9f43d0883f011826d914e8e37b3694ea1e