tests.yml in nesta-0.15.0

- old
+ new

@@ -6,10 +6,10 @@
 jobs:
   test:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["2.7", "3.0", "3.1", "3.2", "head"]
+        ruby: ["2.7", "3.0", "3.1", "3.2"]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
       - uses: ruby/setup-ruby@v1
         with: