Update mantle container image to latest HEAD

Flatcar Buildbot · Flatcar Buildbot · commit 69bdd3df2053 · 2023-11-24T14:19:39.000Z
diff --git a/sdk_container/.repo/manifests/mantle-container b/sdk_container/.repo/manifests/mantle-container
@@ -1 +1 @@
-ghcr.io/flatcar/mantle:git-a1422c6dac816d7af7d3e0439c1b2e94af1d572c
+ghcr.io/flatcar/mantle:git-481ef104fe4a3bbb05ec4c2f69d0d9417bf74cb2

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-ghcr.io/flatcar/mantle:git-a1422c6dac816d7af7d3e0439c1b2e94af1d572c`
	`1`	`+ghcr.io/flatcar/mantle:git-481ef104fe4a3bbb05ec4c2f69d0d9417bf74cb2`