Add test_arg input and populate to test_args in test() (#73)

action.yml

@@ -38,6 +38,9 @@ inputs:
   allow_reresolve:
     description: 'Whether to allow re-resolving of package versions in the test environment. Only effective on Julia 1.9+. Options: true | false. Default value: true'
     default: 'true'
+  test_args:
+    description: 'Argument string that is passed on to test.'
+    default: ''
 
 runs:
   using: 'composite'
@@ -74,3 +77,4 @@ runs:
         CHECK_BOUNDS: ${{ inputs.check_bounds }}
         COMPILED_MODULES: ${{ inputs.compiled_modules }}
         ALLOW_RERESOLVE: ${{ inputs.allow_reresolve }}
+        TEST_ARGS: ${{ inputs.test_args }}