remove trailing slash

Author: jkrumbiegel

.github/workflows/test-smokes.yml

@@ -191,7 +191,7 @@ jobs:
       - name: delete libcharset-1.dll to fix cache
         if: runner.os == 'Windows'
         run: |
-          rm -rf "C:/Users/runneradmin/.julia/artifacts/1da3b3a2698813adf2b925c46aa2d68ec8474449/"
+          rm -rf "C:/Users/runneradmin/.julia/artifacts/1da3b3a2698813adf2b925c46aa2d68ec8474449"
         shell: bash
 
       - name: Instantiate QuartoNotebookRunner