refactor: ensure range is bounded (#15429)

No linked issue, it's a follow-up of 2 PRs I recently made to improve
some math commands. (#15319)

# Description
Small refactor to simplify the code. It was suggested in the comments of
my previous PR.

# User-Facing Changes
None

# Tests + Formatting
Tests, fmt and clippy OK

# After Submitting
Nothing more required

crates/nu-command/src/math/sqrt.rs

@@ -1,6 +1,5 @@
 use crate::math::utils::ensure_bounded;
 use nu_engine::command_prelude::*;
-use nu_protocol::Range;
 
 #[derive(Clone)]
 pub struct MathSqrt;
@@ -56,10 +55,7 @@ impl Command for MathSqrt {
             ..,
         ) = input
         {
-            match &**val {
-                Range::IntRange(range) => ensure_bounded(range.end(), internal_span, head)?,
-                Range::FloatRange(range) => ensure_bounded(range.end(), internal_span, head)?,
-            }
+            ensure_bounded(val.as_ref(), internal_span, head)?;
         }
         input.map(move |value| operate(value, head), engine_state.signals())
     }
@@ -83,10 +79,7 @@ impl Command for MathSqrt {
             ..,
         ) = input
         {
-            match &**val {
-                Range::IntRange(range) => ensure_bounded(range.end(), internal_span, head)?,
-                Range::FloatRange(range) => ensure_bounded(range.end(), internal_span, head)?,
-            }
+            ensure_bounded(val.as_ref(), internal_span, head)?;
         }
         input.map(
             move |value| operate(value, head),