Update to runc main, removing pin to an older version

We were pinned to a specific commit to ensure that tests kept
passing. Hopefully they pass now, as we need to grab latest runc
for CVE fixes.

Also grab Buildah main to fix a build issue on FreeBSD. After a
botched manual vendor, I used Ed's treadmill script and squashed
it into this commit to make Git happy. Thanks bunches Ed.

Signed-off-by: Matt Heon <mheon@redhat.com>

vendor/github.com/containers/buildah/convertcw.go

@@ -45,6 +45,7 @@ type CWConvertImageOptions struct {
 	FirmwareLibrary          string
 	BaseImage                string
 	Logger                   *logrus.Logger
+	ExtraImageContent        map[string]string
 
 	// Passed through to BuilderOptions. Most settings won't make
 	// sense to be made available here because we don't launch a process.
@@ -171,6 +172,8 @@ func CWConvertImage(ctx context.Context, systemContext *types.SystemContext, sto
 		Slop:                     options.Slop,
 		FirmwareLibrary:          options.FirmwareLibrary,
 		Logger:                   logger,
+		GraphOptions:             store.GraphOptions(),
+		ExtraImageContent:        options.ExtraImageContent,
 	}
 	rc, workloadConfig, err := mkcw.Archive(sourceDir, &source.OCIv1, archiveOptions)
 	if err != nil {