Merge pull request #26791 from mheon/bump_560_rc2

Bump to v5.6.0-rc2

Author: openshift-merge-bot[bot]

version/rawversion/version.go

@@ -4,4 +4,4 @@ package rawversion
 //
 // This indirection is needed to prevent semver packages from bloating
 // Quadlet's binary size.
-const RawVersion = "5.6.0-dev"
+const RawVersion = "5.6.0-rc2"