Since the currently failing step of the sqlc check job is only a cache,
it shouldn't cause the whole job to fail.
So we continue on error but also switch to a maintained fork of the
cache action which should fix the error in the first place.
There's a race condition in the h2_bundle.go of go 1.16.10 and later. The
issue https://github.com/golang/go/issues/51799 mentions that this might
be fixed in go 1.19, so we'll need to wait for that.
We make sure we build our docker images with go 1.16.9 to not run into
the issue in the wild.
