add default values generateDeployScript values to example contracts

src/test/examples/cameligo/arithmetic-contract.ligo

@@ -15,6 +15,9 @@
   evaluateFunction:
     entrypoint: add
     parameters: 5, 6
+  generateDeployScript:
+    entrypoint: main
+    storage: 0
 *_*)
 type storage = int
 

src/test/examples/pascaligo/arithmetic-contract.ligo

@@ -15,6 +15,9 @@
   evaluateFunction:
     entrypoint: add
     parameters: (5, 6)
+  generateDeployScript:
+    entrypoint: main
+    storage: 0
 *_*)
 // variant defining pseudo multi-entrypoint actions
 type action is

src/test/examples/reasonligo/arithmetic-contract.ligo

@@ -15,6 +15,9 @@
   evaluateFunction:
     entrypoint: add
     parameters: (5, 6)
+  generateDeployScript:
+    entrypoint: main
+    storage: 0
 *_*)
 type storage = int;