chore: Bump version to 1.2.2

Bump version to 1.2.2 and add release summary.

Signed-off-by: Felix Matouschek <fmatouschek@redhat.com>

changelogs/changelog.yaml

@@ -25,3 +25,8 @@ releases:
       release_summary: Mostly code cleanups and dependency updates to ensure compatibility
         with KubeVirt >= 1.1.0
     release_date: '2024-03-04'
+  1.2.2:
+    changes:
+      release_summary: No functional changes, only cleanup of files included in the release
+        tarball and vendoring of documentation fragments.
+    release_date: '2024-03-11'

galaxy.yml

@@ -1,7 +1,7 @@
 ---
 namespace: kubevirt
 name: core
-version: "1.2.1"
+version: "1.2.2"
 readme: README.md
 authors:
   - KubeVirt Project (kubevirt.io)