Build binaries for new releases

[rafaelespinoza]

It'd be cool, and certainly very official-looking, to build artifacts when there's a new release.

There are some automated ways to do this. GoReleaser looks good. One drawback with GoReleaser is that it takes more setup to cross-compile with CGO, so that'd make it harder for the sqlite3 driver.

There should be some checks before kicking off the release build:

• all tests pass
• go vet passes
• security scan passes

Those are already set up with other GitHub Actions. If any one of those doesn't pass, then probably don't want to allow another release build.