Try without ruby-head

Author: charlespwd

.github/workflows/liquid.yml

@@ -22,13 +22,6 @@ jobs:
               rubyopt: "--enable-frozen-string-literal",
             }
           - { ruby: 3.4, allowed-failure: false, rubyopt: "--yjit" }
-          - { ruby: ruby-head, allowed-failure: false }
-          - {
-              ruby: ruby-head,
-              allowed-failure: false,
-              rubyopt: "--enable-frozen-string-literal",
-            }
-          - { ruby: ruby-head, allowed-failure: false, rubyopt: "--yjit" }
     name: Test Ruby ${{ matrix.entry.ruby }}
     steps:
       - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0