Bump ruby from 3.1.3-slim to 3.2.0-slim

Bumps ruby from 3.1.3-slim to 3.2.0-slim.

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

Signed-off-by: dependabot[bot] <support@github.com>

Dockerfile

@@ -1,4 +1,4 @@
-FROM ruby:3.1.3-slim
+FROM ruby:3.2.0-slim
 
 RUN apt-get update -qq && apt-get install -yq --no-install-recommends \
     build-essential \

production.Dockerfile

@@ -1,4 +1,4 @@
-FROM ruby:3.1.3-slim
+FROM ruby:3.2.0-slim
 
 RUN apt-get update -qq && apt-get install -yq --no-install-recommends \
     build-essential \