[WIP] Applied Gradle Plugins Declaratively for `path_provider`

[jesswrd]

Updated applying gradle plugins from usage of imperative apply to usage of declarative blocks {} apply. Intending on updating all android example apps under packages. Did one more as a proof of concept before doing more.

More information on Flutter Gradle Plugin Apply here

Partially addresses #152656

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• [x] The title of the PR starts with the name of the package surrounded by square brackets, e.g. [shared_preferences]
• [x] I linked to at least one issue that this PR fixes in the description above.
• [x] I updated pubspec.yaml with an appropriate new version according to the pub versioning philosophy, or this PR is exempt from version changes.
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[stuartmorgan-g]

Looks like this change triggers a new check on the existing targetSdkVersion value?

[jesswrd]

Looks like this change triggers a new check on the existing targetSdkVersion value?

Yeah, I think the current targetSdkVersion is outdated. I'm just going to update it to 35 (most recent one)