docs: update links/deeplinks to polars 0.39.1

[skip ci]

README.md

@@ -92,7 +92,7 @@
 😣: uses additional memory proportional to the cardinality of the columns in the CSV.  
 🧠: expensive operations are memoized with available inter-session Redis/Disk caching for fetch commands.  
 🗄️: [Extended input support](#extended-input-support).  
-🐻‍❄️: command powered by [![polars 0.39.0](https://img.shields.io/badge/polars-0.39.0-blue)](https://github.com/pola-rs/polars/releases/tag/rs-0.39.0) engine.  
+🐻‍❄️: command powered by [![polars 0.39.1](https://img.shields.io/badge/polars-0.39.1-blue)](https://github.com/pola-rs/polars/releases/tag/rs-0.39.1) engine.  
 🤖: command uses Natural Language Processing & General AI techniques.  
 🏎️: multithreaded and/or faster when an index (📇) is available.  
 🚀: multithreaded even without an index.  

src/cmd/sqlp.rs

@@ -6,8 +6,8 @@ Polars SQL is a SQL dialect, converting SQL queries to fast Polars LazyFrame exp
 (see https://docs.pola.rs/user-guide/sql/intro/).
 
 For a list of SQL functions and keywords supported by Polars SQL, see
-https://github.com/pola-rs/polars/blob/rs-0.39.0/crates/polars-sql/src/functions.rs
-https://github.com/pola-rs/polars/blob/rs-0.39.0/crates/polars-sql/src/keywords.rs and
+https://github.com/pola-rs/polars/blob/rs-0.39.1/crates/polars-sql/src/functions.rs
+https://github.com/pola-rs/polars/blob/rs-0.39.1/crates/polars-sql/src/keywords.rs and
 https://github.com/pola-rs/polars/issues/7227
 
 Returns the shape of the query result (number of rows, number of columns) to stderr.