Migrate WhiteSource configuration file to json format

Author: mend-bolt-for-github[bot]

.whitesource

@@ -1,8 +1,8 @@
-##########################################################
-####    WhiteSource Integration configuration file    ####
-##########################################################
-
-# Configuration #
-#---------------#
-ws.repo.scan=true
-vulnerable.check.run.conclusion.level=failure
+{
+  "checkRunSettings": {
+    "vulnerableCheckRunConclusionLevel": "failure"
+  },
+  "issueSettings": {
+    "minSeverityLevel": "LOW"
+  }
+}