Bumps Actions to their latest major versions. Main change is they're now using Node 16 instead of 12, which was EOL at end of April.

• Changelog for actions/checkout can be found here
• Releases for actions/setup-node can be found here

Thanks for doing this! Definitely want to upgrade but....hmmmm any idea why all the CI checks failed?

@brianc One of stream-tester’s transitive dependencies. It’s been failing the same way on current master for a while.

One of stream-tester’s transitive dependencies. It’s been failing the same way on current master for a while.

Thanks @charmander, had looked at the errors thrown and couldn't tell why it was failing.

One of stream-tester’s transitive dependencies. It’s been failing the same way on current master for a while.

barf. going to just kill this dep & remove stream tester. hasn't really provided much value anyway. I'll get that ed up, and then unfortunatley ask PR contributors to rebase on master once I remove this broken dep. Wish made that busy-work easier to do behind a button like "bring PR up to date with merge target" or something.

@Fdawgs thanks for doing this! I went ahead and bumped it on #2743 because I was trying to fix CI from being broken so this isn't needed anymore, but thanks for contributing...your bumping this forward helped me start pulling on the thread!

Great, thanks @brianc!