FindMatlab: add R2019a and R2019b MATLAB_VERSIONS_MAPPING

Reference for versions: https://www.mathworks.com/products/compiler/matlab-runtime.html

Fixes: #20087

Modules/FindMatlab.cmake

@@ -241,6 +241,8 @@ if(NOT MATLAB_ADDITIONAL_VERSIONS)
 endif()
 
 set(MATLAB_VERSIONS_MAPPING
+  "R2019b=9.7"
+  "R2019a=9.6"
   "R2018b=9.5"
   "R2018a=9.4"
   "R2017b=9.3"