[DNM] Test env

Author: Kyle-Ye

.github/workflows/ubuntu.yml

@@ -23,7 +23,10 @@ jobs:
       - uses: actions/checkout@v4
       - name: Swift version
         run: |
+          echo $SHELL
+          ls -lah /usr/bin/swift
           which swift && swift --version
+          printenv | grep '^_'
       - name: Building and running tests in debug mode with coverage
         run: |
           swift test \