meta: Deny including multiple versions of image

To prevent ruffle-rs#15836 from reoccurring.

deny.toml

@@ -58,7 +58,10 @@ multiple-versions = "warn"
 
 # We are manually pinning `tracing-tracy` to match the version used by
 # `profiling`, but this can get stale easily.
-deny = [{ name = "tracy-client", deny-multiple-versions = true }]
+deny = [
+    { name = "tracy-client", deny-multiple-versions = true },
+    { name = "image", deny-multiple-versions = true },
+]
 
 [sources]
 # Lint level for what to happen when a crate from a crate registry that is not