chore: test and build against ruby 3.3 (#70)

Adds ruby 3.3 to the test matrix and uses it for release in cd.

Author: benmelz

.github/workflows/cd.yml

@@ -9,7 +9,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.0
+          ruby-version: 3.3
       - uses: actions/setup-node@v3
         with:
           node-version: 18

.github/workflows/ci.yml

@@ -13,6 +13,7 @@ jobs:
           - 3.0
           - 3.1
           - 3.2
+          - 3.3
     steps:
       - uses: actions/checkout@v3
       - uses: ruby/setup-ruby@v1