amber: updated dependency constraint on cuda (spack#16919)

Fix message 'amber requires cuda version :10.1.243, but spec asked for 10.2.89'

var/spack/repos/builtin/packages/amber/package.py

@@ -96,7 +96,7 @@ class Amber(Package, CudaPackage):
     depends_on('mpi', when='+mpi')
 
     # Cuda dependencies
-    depends_on('cuda@:10.1.243', when='@18:+cuda')
+    depends_on('cuda@:10.2.89', when='@18:+cuda')
     depends_on('[email protected]', when='@:16+cuda')
 
     # conflicts