unit_tests.yml in giblish-2.0.0.pre.alpha1

- old
+ new

@@ -7,10 +7,10 @@
 jobs:
   test:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ["2.7", "3.0", "3.1"]
+        ruby-version: ["3.0", "3.1"]
 
     steps:
       - name: Install binutils
         run: |
           sudo apt -y install binutils