dependency update: update polar to 0.26.1 (#7743)

# Description

As title

# User-Facing Changes

# Tests + Formatting

Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.

crates/nu-command/src/dataframe/eager/summary.rs

@@ -185,22 +185,22 @@ fn command(
                 .cast(&DataType::Float64)
                 .ok()
                 .and_then(|ca| match ca.get(0) {
-                    AnyValue::Float64(v) => Some(v),
+                    Ok(AnyValue::Float64(v)) => Some(v),
                     _ => None,
                 });
 
             let mean = match col.mean_as_series().get(0) {
-                AnyValue::Float64(v) => Some(v),
+                Ok(AnyValue::Float64(v)) => Some(v),
                 _ => None,
             };
 
             let median = match col.median_as_series().get(0) {
-                AnyValue::Float64(v) => Some(v),
+                Ok(AnyValue::Float64(v)) => Some(v),
                 _ => None,
             };
 
             let std = match col.std_as_series(0).get(0) {
-                AnyValue::Float64(v) => Some(v),
+                Ok(AnyValue::Float64(v)) => Some(v),
                 _ => None,
             };
 
@@ -209,7 +209,7 @@ fn command(
                 .cast(&DataType::Float64)
                 .ok()
                 .and_then(|ca| match ca.get(0) {
-                    AnyValue::Float64(v) => Some(v),
+                    Ok(AnyValue::Float64(v)) => Some(v),
                     _ => None,
                 });
 
@@ -221,7 +221,7 @@ fn command(
                         .ok()
                         .and_then(|ca| ca.cast(&DataType::Float64).ok())
                         .and_then(|ca| match ca.get(0) {
-                            AnyValue::Float64(v) => Some(v),
+                            Ok(AnyValue::Float64(v)) => Some(v),
                             _ => None,
                         })
                 })
@@ -232,7 +232,7 @@ fn command(
                 .cast(&DataType::Float64)
                 .ok()
                 .and_then(|ca| match ca.get(0) {
-                    AnyValue::Float64(v) => Some(v),
+                    Ok(AnyValue::Float64(v)) => Some(v),
                     _ => None,
                 });