Fix license not detected for some maven packages

In one of the workflow, scancode summarizer goes through the root files
to look for license.  The filtering for root files is based on case
sensitive file path matching.  In maven packaging, META/INF directory
is used often.  Add this to the license location to search.

Test case:
https://clearlydefined.io/definitions/maven/mavencentral/org.flywaydb/flyway-core/9.20.0
https://dev.clearlydefined.io/definitions/maven/mavencentral/org.flywaydb/flyway-core/7.7.2

Task: #846

lib/utils.js

@@ -338,7 +338,12 @@ function isDeclaredLicense(identifier) {
 }
 
 function getLicenseLocations(coordinates) {
-  const map = { npm: ['package/'], maven: ['meta-inf/'], pypi: [`${coordinates.name}-${coordinates.revision}/`], go: [goLicenseLocations(coordinates)] }
+  const map = {
+    npm: ['package/'],
+    maven: ['meta-inf/', 'META-INF/'],
+    pypi: [`${coordinates.name}-${coordinates.revision}/`],
+    go: [goLicenseLocations(coordinates)]
+  }
   return map[coordinates.type]
 }