Regenerate lockfile; test against modern rubies

Author: camertron

.github/workflows/unit_tests.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: [2.7, '3.0', 3.1, 3.2]
+        ruby-version: [3.1, 3.2, 3.3, 3.4]
     steps:
       - uses: actions/checkout@v2
       - name: Set up Ruby ${{ matrix.ruby-version }}

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    kubernetes-cli (0.5.0)
+    kubernetes-cli (0.6.0)
       kubectl-rb (~> 0.2)
 
 GEM