Bump ruby/setup-ruby from 1.325.0 to 1.326.0

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.325.0 to 1.326.0.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](ruby/setup-ruby@e8944e8...762794c)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.326.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/rspec.yml

@@ -33,7 +33,7 @@ jobs:
       - run: rm -f Gemfile.lock
       - run: rm -f .ruby-version
       - name: Set up Ruby
-        uses: ruby/setup-ruby@e8944e80fb94b20106697132f8c20c665fab29e9 # v1.325.0
+        uses: ruby/setup-ruby@762794c140bbeda0f1224786aa33b4b46783a6c1 # v1.326.0
         with:
           ruby-version: ${{ matrix.ruby }}
           rubygems: latest