update version to avoid error

[dustinhartlyn]

When I imported the project and tried to build it as-is, I got an error:
"Unable to make field private final java.lang.String java.io.File.path accessible"

build was successful as soon as I updated the gradle version

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[dustinhartlyn]

I just realize that the build succeeded but there are still conflicts when I run the app. Might ask someone with more knowledge look to see if some version info needs to be updated.