chore(rust): Fix some typos in comments

crates/polars-pipe/src/pipeline/dispatcher/drive_operator.rs

@@ -214,7 +214,7 @@ pub(super) fn flush_operators(
                         }
                     },
                     // The branch for pushing data in the operators.
-                    // This is the same as the default stack exectuor, except now it pushes
+                    // This is the same as the default stack executor, except now it pushes
                     // `Some(chunk)` instead of `chunk`.
                     Some(chunk) => {
                         match operators.get_mut(op_i) {

crates/polars/tests/it/io/parquet/write/binary.rs

@@ -8,7 +8,7 @@ use polars_parquet::parquet::types::ord_binary;
 use polars_parquet::parquet::write::WriteOptions;
 
 fn unzip_option(array: &[Option<Vec<u8>>]) -> Result<(Vec<u8>, Vec<u8>)> {
-    // leave the first 4 bytes anouncing the length of the def level
+    // leave the first 4 bytes announcing the length of the def level
     // this will be overwritten at the end, once the length is known.
     // This is unknown at this point because of the uleb128 encoding,
     // whose length is variable.

crates/polars/tests/it/io/parquet/write/primitive.rs

@@ -8,7 +8,7 @@ use polars_parquet::parquet::types::NativeType;
 use polars_parquet::parquet::write::WriteOptions;
 
 fn unzip_option<T: NativeType>(array: &[Option<T>]) -> Result<(Vec<u8>, Vec<u8>)> {
-    // leave the first 4 bytes anouncing the length of the def level
+    // leave the first 4 bytes announcing the length of the def level
     // this will be overwritten at the end, once the length is known.
     // This is unknown at this point because of the uleb128 encoding,
     // whose length is variable.