Fedora 35 support was dropped, so we can update to a newer Go.
Stable RHEL 8 and 9 and Fedora 36 ships Go 1.18, so let's switch to it.
"//go:build" directives are now apparently enforced by go fmt, so that's why
there were added.
Also, all the github actions were adjusted to use Go 1.18.
Signed-off-by: Ondřej Budai <ondrej@budai.cz>
Validate incoming requests with openapi3. Remove unsupported
uuid format from the openapi spec. Similarly, change url to uri as
uri is a supported format and url is not.
Co-authored-by: Ondřej Budai <obudai@redhat.com>
Signed-off-by: Ondřej Budai <ondrej@budai.cz>