Revert "fix: pin ruby action to specific version (#8491)" (#8517)

This reverts commit dc0de29.

Author: reedham-aws

.github/workflows/build.yml

@@ -160,8 +160,7 @@ jobs:
       - uses: actions/setup-go@v6
         with:
           go-version: '1.19'
-      # Pin to specific version until Lambda Builders support bundler 4.0.0
-      - uses: ruby/setup-ruby@v1.268.0
+      - uses: ruby/setup-ruby@v1
         with:
           ruby-version: "3.3"
       - uses: actions/setup-node@v6