fix: cleanup memory leaks in ocloc

- enable memory leaks detection in ocloc tests

Related-To: NEO-7467

Signed-off-by: Mateusz Hoppe <mateusz.hoppe@intel.com>

shared/offline_compiler/source/offline_compiler.cpp

@@ -339,6 +339,12 @@ int OfflineCompiler::buildSourceCode() {
                     return retVal;
             }
         }
+        delete[] irBinary;
+        delete[] genBinary;
+        irBinary = nullptr;
+        irBinarySize = 0;
+        genBinary = nullptr;
+        genBinarySize = 0;
     }
 
     UNRECOVERABLE_IF(!igcFacade->isInitialized());