Simplify gh action CI tests

Change-Id: I86cdd29ced74d114e1ee506c65d2342c3e77f8c3
diff --git a/scripts/R_run.bat b/scripts/R_run.bat
index 499708e..d10b1da 100755
--- a/scripts/R_run.bat
+++ b/scripts/R_run.bat
@@ -1,6 +1,11 @@
+Rscript -e '.libPaths()'
 set R_USER=C:\R
 set R_HOME=C:\R
 set PATH=%R_HOME%\bin\i386;%PATH%
+set PATH=%R_HOME%\bin;%PATH%
+set PATH=%R_HOME%\bin\x64;%PATH%
+set PATH=%R_HOME%;%PATH%
+echo %PATH%
 set
 python %1 %2 %3 %4 %5 %6