Update mantle container image to latest HEAD

Flatcar Buildbot · Flatcar Buildbot · commit 509b882344a8 · 2025-03-17T21:00:44.000Z
diff --git a/sdk_container/.repo/manifests/mantle-container b/sdk_container/.repo/manifests/mantle-container
@@ -1 +1 @@
-ghcr.io/flatcar/mantle:git-38ffbac3227bceb1baa37f80ccf10d968c7950e5
+ghcr.io/flatcar/mantle:git-b246a4218b88a8a0ac784e85a96e1d832c975816

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-ghcr.io/flatcar/mantle:git-38ffbac3227bceb1baa37f80ccf10d968c7950e5`
	`1`	`+ghcr.io/flatcar/mantle:git-b246a4218b88a8a0ac784e85a96e1d832c975816`