fix: update release manifest to force new version (#1954)

Signed-off-by: matttrach <matt.trachier@suse.com>
Co-authored-by: Matt Trachier <matt.trachier@suse.com>

Author: github-actions[bot]

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "13.0.0"
+  ".": "13.1.2"
 }