Replaced IoError::new_with_additional_context calls that still had Span::unknown() (#15056)

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# Description
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In #14968 I grepped the code for `IoError::new` calls with unknown
spans, but I forgot to also grep for
`IoError::new_with_additional_context`, so I missed some. Hopefullly
this is the last P.S. to #14968.

# User-Facing Changes
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N/A

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crates/nu-cli/src/eval_file.rs

@@ -27,11 +27,11 @@ pub fn evaluate_file(
     let cwd = engine_state.cwd_as_string(Some(stack))?;
 
     let file_path = canonicalize_with(&path, cwd).map_err(|err| {
-        IoError::new_with_additional_context(
+        IoError::new_internal_with_path(
             err.kind(),
-            Span::unknown(),
-            PathBuf::from(&path),
             "Could not access file",
+            nu_protocol::location!(),
+            PathBuf::from(&path),
         )
     })?;
 
@@ -46,21 +46,21 @@ pub fn evaluate_file(
         })?;
 
     let file = std::fs::read(&file_path).map_err(|err| {
-        IoError::new_with_additional_context(
+        IoError::new_internal_with_path(
             err.kind(),
-            Span::unknown(),
-            file_path.clone(),
             "Could not read file",
+            nu_protocol::location!(),
+            file_path.clone(),
         )
     })?;
     engine_state.file = Some(file_path.clone());
 
     let parent = file_path.parent().ok_or_else(|| {
-        IoError::new_with_additional_context(
+        IoError::new_internal_with_path(
             std::io::ErrorKind::NotFound,
-            Span::unknown(),
-            file_path.clone(),
             "The file path does not have a parent",
+            nu_protocol::location!(),
+            file_path.clone(),
         )
     })?;