fix(dependency-analysis): handle case where dependencies field is und…

…efined (#802)

Handle case where dependencies field on an unlocked package is undefined, which
was causing an error when attempting to reference a method 'find' on
dependencies.

packages/core/src/dependency/DependencyAnalysis.ts

@@ -58,7 +58,7 @@ export default class DependencyAnalysis {
             cmp.packageType === "Unlocked" &&
             component.package !== cmp.package
           ) {
-            const isDependencyDefined = projectConfig.packageDirectories[component.indexOfPackage].dependencies.find(dependency => {
+            const isDependencyDefined = projectConfig.packageDirectories[component.indexOfPackage].dependencies?.find(dependency => {
               const packageName: string = dependency.package.split("@")[0];
               return packageName === cmp.package;
             }) ? true : false