go.mod: bump stream-metadata-go to v0.4.5

To pull in coreos/stream-metadata-go#75.

Author: jlebon

go.mod

@@ -24,7 +24,7 @@ require (
 	github.com/coreos/ignition/v2 v2.19.0
 	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f
 	github.com/coreos/rpmostree-client-go v0.0.0-20231118154446-df964bc5419a
-	github.com/coreos/stream-metadata-go v0.4.4
+	github.com/coreos/stream-metadata-go v0.4.5
 	github.com/coreos/vcontext v0.0.0-20230201181013-d72178a18687
 	github.com/digitalocean/go-qemu v0.0.0-20200529005954-1b453d036a9c
 	github.com/digitalocean/godo v1.33.0