This should hopefully allow multiple simultaneous versions of the
package to be installed (i.e. one for each installed kernel), without
having to explicitly specify `installonlypkgs = gasket-driver` in
`dnf.conf`.
Since _kernel_ is an `installonly` package, "upgrading" actually
installs a new version instead of replacing the installed version.
Because of this, the `Requires` tag of _gasket-driver_ does not prevent
upgrading to a new version of the kernel, as the requirement will still
be satisfied by the old version.
To fully prevent upgrading to a new kernel for which there is no
_gasket-driver_ (which would prevent Frigate from starting after the
reboot), we need to add a `Conflicts` tag. This will not allow RPM to
install a version of _kernel_ newer than the one that matches
_gasket-driver_.
