Bump der from 0.8.0-rc.3 to 0.8.0-rc.4 (#835)

Author: dependabot[bot]

Cargo.lock

@@ -20,7 +20,7 @@ rust-version = "1.85"
 subtle = { version = "2.6", default-features = false }
 
 # optional dependencies
-der = { version = "0.8.0-rc.3", optional = true, default-features = false }
+der = { version = "0.8.0-rc.4", optional = true, default-features = false }
 hybrid-array = { version = "0.3", optional = true }
 num-traits = { version = "0.2.19", default-features = false }
 rand_core = { version = "0.9.2", optional = true, default-features = false }