remove duplicate from version matrix

Author: gingerbenw

.buildkite/basic/electron-pipeline.yml

@@ -18,7 +18,6 @@ steps:
             - "^38.0.0" # Latest Version
             - "^37.0.0" # EOL 2026-Jan-13
             - "^36.0.0" # EOL 2025-Oct-28
-            - "^34.0.0" # EOL 2025-Jun-24
           node_version:
             - "22"
         adjustments: