[MINOR][ML][DOCS] Fix sql data types link in the ml-pipeline page
[MINOR][ML][DOCS] Fix sql data types link in the ml-pipeline page

### What changes were proposed in this pull request?

<img width="939" alt="image" src="https://user-images.githubusercontent.com/8326978/169767919-6c48554c-87ff-4d40-a47d-ec4da0c993f7.png">

[Spark SQL datatype reference](https://spark.apache.org/docs/latest/sql-reference.html#data-types) - `https://spark.apache.org/docs/latest/sql-reference.html#data-types` is invalid and it shall be [Spark SQL datatype reference](https://spark.apache.org/docs/latest/sql-ref-datatypes.html) - `https://spark.apache.org/docs/latest/sql-ref-datatypes.html`
https://spark.apache.org/docs/latest/ml-pipeline.html#dataframe

### Why are the changes needed?

doc fix

### Does this PR introduce _any_ user-facing change?

no

### How was this patch tested?

`bundle exec jekyll serve`

Closes #36633 from yaooqinn/minor.

Authored-by: Kent Yao <6cb6e60275b692278ff3b61eb68b11b25838f7b8@apache.org>
Signed-off-by: huaxingao <476a74adb9b527e3b520f540479bdf67cce750d6@apple.com>
(cherry picked from commit de73753bb2e5fd947f237e731ff05aa9f2711677)
Signed-off-by: huaxingao <476a74adb9b527e3b520f540479bdf67cce750d6@apple.com>

milliman/spark,milliman/spark,milliman/spark,milliman/spark,milliman/spark,milliman/spark,milliman/spark