feat: Check for new version of app during validation

[bdferris-v2]

Summary:

Adds functionality to to compare the current app version against the latest release version (per this wiki page).

Closes #1171

Expected behavior:

When a new version of the app is available, show notices in the validation report and the gui application.

• Run the unit tests with gradle test to make sure you didn't break anything
• Format the title like "feat: [new feature short description]". Title must follow the Conventional Commit Specification(https://www.conventionalcommits.org/en/v1.0.0/).
• Linked all relevant issues
• Include screenshot(s) showing how this pull request works and fixes the issue(s)

[maximearmstrong]

Thanks @bdferris-v2, this is great. I left some questions and suggestions in-line.

Also, did you create the wiki page manually @bdferris-v2 ? I'm mainly asking to know if we will have to update the version manually or is that part of the process?

[bdferris-v2]

@maximearmstrong to answer your original question, I just created the wiki page manually. I believe we would also update it manually as needed. It would probably get its own step in the Release instructions.

[bdferris-v2]

Just to bump this: any remaining concerns?

[isabelle-dr]

It looks like all the comments from @maximearmstrong and @barbeau were addressed. Since he is off today, I will go ahead and merge this PR. This way, it can be included in the release :).

Thank you @bdferris for this great addition to the app!