bump nushell to dev version 0.84.1 (#10101)

# Description

This PR bumps nushell from release version 0.84.0 to dev version 0.84.1.

# User-Facing Changes
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# Tests + Formatting
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crates/nu_plugin_custom_values/Cargo.toml

@@ -10,7 +10,7 @@ name = "nu_plugin_custom_values"
 bench = false
 
 [dependencies]
-nu-plugin = { path = "../nu-plugin", version = "0.84.0" }
-nu-protocol = { path = "../nu-protocol", version = "0.84.0", features = ["plugin"] }
+nu-plugin = { path = "../nu-plugin", version = "0.84.1" }
+nu-protocol = { path = "../nu-protocol", version = "0.84.1", features = ["plugin"] }
 serde = { version = "1.0", default-features = false }
 typetag = "0.2"