Update test cases upto expectation

Signed-off-by: akugarg <akanksha.garg2k@gmail.com>

Author: akugarg

tests/summarycode/data/score/file_coverage-expected.json

@@ -158,9 +158,11 @@
           }
         }
       ],
+      "unknown_licenses": [],
       "license_expressions": [
         "mit"
       ],
+      "unknown_license_expressions": [],
       "percentage_of_license_text": 1.83,
       "copyrights": [],
       "holders": [],
@@ -274,9 +276,11 @@
           }
         }
       ],
+      "unknown_licenses": [],
       "license_expressions": [
         "mit"
       ],
+      "unknown_license_expressions": [],
       "percentage_of_license_text": 33.33,
       "copyrights": [
         {