Prompt user to update AlgoKit when new version is detected

[Loedn]

As highlighted by the above image, we already detect when a user is on an older version of cli, we could/should go the extra mile and:

• prompt do you want to update AlgoKit (y/n)?
• if yes run a pipx upgrade algokit
• if no store the decision and prompt again on next release

[robdmoore]

Only problem with that is when it's installed with brew you can't do that. If we could detect it was installed with brew though we could issue a brew upgrade instead...

[Loedn]

Possible mid way is to make the there is a new version available alert more visible