[SYCL] Disable ESIMD/regression/variable_gather_mask.cpp on failing configuration (#9540)

The failure is tracked in the internal bug tracking system.

Author: aelovikov-intel

sycl/test-e2e/ESIMD/regression/variable_gather_mask.cpp

@@ -7,6 +7,8 @@
 //===----------------------------------------------------------------------===//
 // RUN: %{build} -o %t.out
 // RUN: %{run} %t.out
+
+// UNSUPPORTED: opencl && gpu-intel-pvc
 //
 // This is a regression test for the VC BE bug which generates incorrect code in
 // some cases in presence of variable (not compile-time constant) mask