openvino

a9608959 - [GPU] Add canonicalization for attention mask shape with rank less than 4 (#31096)

[GPU] Add canonicalization for attention mask shape with rank less than 4 (#31096) ### Details: - Add canonicalization check for attention mask shape. Previously, using an attention mask with rank less than 4 could lead to kernel compilation errors and incorrect indexing. However, according to SDPA specification, it can be either at least 2-dimensional or empty if it is to be ignored - Related transformation PRs that squeeze attention mask in some cases: https://github.com/openvinotoolkit/openvino/pull/31089 and https://github.com/openvinotoolkit/openvino/pull/30659 ### Tickets: - [CVS-165700](https://jira.devtools.intel.com/browse/CVS-165700) - [CVS-169359](https://jira.devtools.intel.com/browse/CVS-169359)