Port osbuild/images v0.33.0 with dot-notation to composer

Update the osbuild/images to the version which introduces "dot notation"
for distro release versions.

 - Replace all uses of distroregistry by distrofactory.
 - Delete local version of reporegistry and use the one from the
   osbuild/images.
 - Weldr: unify `createWeldrAPI()` and `createWeldrAPI2()` into a single
   `createTestWeldrAPI()` function`.
 - store/fixture: rework fixtures to allow overriding the host distro
   name and host architecture name. A cleanup function to restore the
   host distro and arch names is always part of the fixture struct.
 - Delete `distro_mock` package, since it is no longer used.
 - Bump the required version of osbuild to 98, because the OSCAP
   customization is using the 'compress_results' stage option, which is
   not available in older versions of osbuild.

Signed-off-by: Tomáš Hozza <thozza@redhat.com>

vendor/github.com/Microsoft/hcsshim/internal/wclayer/unpreparelayer.go

@@ -0,0 +1,27 @@
+//go:build windows
+
+package wclayer
+
+import (
+	"context"
+
+	"github.com/Microsoft/hcsshim/internal/hcserror"
+	"github.com/Microsoft/hcsshim/internal/oc"
+	"go.opencensus.io/trace"
+)
+
+// UnprepareLayer disables the filesystem filter for the read-write layer with
+// the given id.
+func UnprepareLayer(ctx context.Context, path string) (err error) {
+	title := "hcsshim::UnprepareLayer"
+	ctx, span := oc.StartSpan(ctx, title) //nolint:ineffassign,staticcheck
+	defer span.End()
+	defer func() { oc.SetSpanStatus(span, err) }()
+	span.AddAttributes(trace.StringAttribute("path", path))
+
+	err = unprepareLayer(&stdDriverInfo, path)
+	if err != nil {
+		return hcserror.New(err, title, "")
+	}
+	return nil
+}