Fix#4695. PhpSpreadsheet has assumed that each Protected Range on a Worksheet is defined in the Xml using a single range. However, Excel itself will often combine ranges together. So, in the xml for the spreadsheet supplied with the issue, we see:
```xml
<protectedRange name="Champs_non_bloqués_2" sqref="B2:D4 J2:L4 F2:H4"/>
```
When inserting or deleting rows or columns, ReferenceHelper is used to adjust (among other things) Protected Ranges. The existing code (probably) works well enough if there is only one range in `sqref`, but fails to parse correctly and throws an Exception when there is more than one. It is replaced with a fairly straightforward manner of updating when rows/columns are inserted, and a slightly more convoluted manner of updating when rows/columns are deleted.
oleibman