Low: virt-manager security, bug fix, and enhancement update (Oracle Linux 8)

[2.2.1-2.0.1]
- Add OL release support to virt-install for OL KVM guest creation [Orabug: 26135782]

[2.2.1-2]
- man: virt-install: Fix a couple of launchSecurity related typos (rhbz#1741846)

[2.2.1-1]
- Rebased to virt-manager-2.2.1 (rhbz#1726535)
- The rebase also fixes the following bugs:
rhbz#1727881, rhbz#1724287, rhbz#1727811
- spec: add gtksourceview3 dependency introduced by upstream (rhbz#1722820)
- guest: fix warning message when machine type is changed for secure boot (rhbz#1727811)

[2.2.0-2]
- xmleditor: Handle gtksourceview3 as well as gtksourceview4 (rhbz#1722820)
- xmleditor: Fix the gtksource version checking (rhbz#1722820)
- spec: add gtksourceview3 dependency introduced by upstream (rhbz#1722820)

[2.2.0-1]
- Rebased to virt-manager-2.2.0 (rhbz#1721001)
- The rebase also fixes the following bugs:
rhbz#1718065, rhbz#1714304, rhbz#1709857, rhbz#1707379, rhbz#1700354
rhbz#1692489, rhbz#1690687, rhbz#1690685, rhbz#1683609, rhbz#1679018
rhbz#1677019, rhbz#1671599, rhbz#1667025, rhbz#1666597, rhbz#1663430
rhbz#1661867, rhbz#1660467, rhbz#1660123, rhbz#1659354, rhbz#1658511
rhbz#1648939, rhbz#1599139, rhbz#1508147, rhbz#1501608
- spec: add build dependencies that are now required for build (rhbz#1721001)