Update ruby/setup-ruby action to v1.286.0 (#1978)

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/pr-build.yml

@@ -24,7 +24,7 @@ jobs:
           node-version: 24.13.0
 
       - name: Set up Ruby 3.2
-        uses: ruby/setup-ruby@e69dcf3ded5967f30d7ef595704928d91cdae930 # v1.285.0
+        uses: ruby/setup-ruby@90be1154f987f4dc0fe0dd0feedac9e473aa4ba8 # v1.286.0
         with:
           ruby-version: 3.4.8
 

.github/workflows/site-build.yml

@@ -24,7 +24,7 @@ jobs:
           node-version: 24.13.0
 
       - name: Set up Ruby 3.2
-        uses: ruby/setup-ruby@e69dcf3ded5967f30d7ef595704928d91cdae930 # v1.285.0
+        uses: ruby/setup-ruby@90be1154f987f4dc0fe0dd0feedac9e473aa4ba8 # v1.286.0
         with:
           ruby-version: 3.4.8