Update mantle container image to latest HEAD

Flatcar Buildbot · Flatcar Buildbot · commit 934ea8f0943f · 2025-06-10T13:53:17.000Z
diff --git a/sdk_container/.repo/manifests/mantle-container b/sdk_container/.repo/manifests/mantle-container
@@ -1 +1 @@
-ghcr.io/flatcar/mantle:git-3cd877887012d5f17bffb90fd6b4c0c509ebe86e
+ghcr.io/flatcar/mantle:git-12a16b4a9703a4a6bef7f6df81fcc49e89aa2b99

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-ghcr.io/flatcar/mantle:git-3cd877887012d5f17bffb90fd6b4c0c509ebe86e`
	`1`	`+ghcr.io/flatcar/mantle:git-12a16b4a9703a4a6bef7f6df81fcc49e89aa2b99`