Fix conditional logic for target dependencies

[edi-medibank]

First of all, thanks @mikeger for such a great project ❤️ we are evaluating it and find it really useful.

One thing we faced is that in our local packages we define local dependencies via .target and the tool was not picking up this.

for example:

       .target(
            name: "FeatureFlags",
            dependencies: [
                .product(name: "Optimizely", package: "optimizely-swift-sdk"),
                .product(name: "Vexil", package: "Vexil"),
            ],
            path: "Sources/FeatureFlags"
        ),

        .target(
            name: "FeatureFlagsMocks",
            dependencies: [
                .target(name: "FeatureFlags"),
                .product(name: "Vexil", package: "Vexil"),
            ],
            path: "Sources/FeatureFlagsMocks"
        ),

So as we defined .target(name: "FeatureFlags"), instead of just "FeatureFlags", the dependency was not identified.

[mikeger]

@edi-medibank thanks for the contribution! I've added you to the contributors list, I hope it's OK from your end