Upgrade Microgen

Check to see if you have an upstream remote set using git remote -v

If you don't see the Microgen upstream add it

git remote add upstream git@github.com:MicrogenSite/microgen.git

Fetch the latest changes
```
git fetch upstream
```
Check out your local main branch
```
git checkout main
```
Merge the upstream branch into your local, be careful to maintain your content and customizations when resolving merge conflicts. Run yarn install && yarn dev after resolving conflicts to generate a new .tina-lock.json file based on the result of your merge.
```
git merge upstream/main
```