pin serde to avoid https://github.com/serde-rs/serde/issues/2538 (#10061)

Context: https://github.com/serde-rs/serde/issues/2538

As other projects are investigating, this should pin serde to the last
stable release before binary requirements were introduced.

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crates/nu_plugin_custom_values/Cargo.toml

@@ -12,5 +12,6 @@ bench = false
 [dependencies]
 nu-plugin = { path = "../nu-plugin", version = "0.83.2" }
 nu-protocol = { path = "../nu-protocol", version = "0.83.2", features = ["plugin"] }
-serde = { version = "1.0", default-features = false }
+# Due to https://github.com/serde-rs/serde/issues/2538
+serde = { version = "1.0, < 1.0.172", default-features = false }
 typetag = "0.2"