Replace deprecated hipBLAS 3.0 complex types

[danielsu-amd]

Updates the hipBLAS/her example to use hipComplex types.

• hipBLAS 3.0 enforced the deprecation and replacement of two datatypes:
  • hipblasComplex -> hipComplex
  • hipblasDoubleComplex -> hipDoubleComplex
• Reference:
  • Remove hipblasComplex, hipblasDatatype and remove HIPBLAS_V2 API hipBLAS#982
  • https://rocm.docs.amd.com/projects/hipBLAS/en/develop/reference/deprecation.html#removed-in-hipblas-3-0

Adds a directive to choose between hipblasCher2 and hipblasCher2_v2 depending on the hipBLAS version

• In hipBLAS < 3.0, hipblasCher2() accepts hipblasComplex, and hipblasCher2_v2() accepts hipComplex
• Starting in 3.0, hipblasCher2() accepts hipComplex, and hipblasCher2_v2() no longer exists
• Azure CI is on staging hipBLAS, while GH actions is on release ROCm
• To get builds passing in both CIs, we need to check the hipBLAS version and choose the appropriate API call