fixed installrootdir test

Author: unfor19

.github/workflows/test.yaml

@@ -45,7 +45,7 @@ jobs:
             BINDIR: "/tmp/aws/bin"
           - TEST_NAME: "INSTALLROOTDIR v2"
             AWS_CLI_VERSION: "2"
-            BINDIR: "/tmp/aws"  
+            INSTALLROOTDIR: "/tmp/aws"  
     name: Test ${{ matrix.TEST_NAME }}
     steps:
       - uses: actions/checkout@v3