Fix unreasonable update tests (#181)

The tests fixed for cds9 in this PR did some rather weird things like: 
```js
UPDATE(Foo).with({ ID:111, bar:12 }) // would change all rows in Foo to have the same ID: 111
```
... which should rather be like that: 
```js
UPDATE(Foo,{ID:111}).with({ bar:12 }) // updates Foo #111 only 
```

---------

Co-authored-by: D045778 <[email protected]>

Author: danjoa

tests/integration/service-api.test.js

@@ -367,7 +367,7 @@ describe("change log integration test", () => {
         expect(createEntityChange.objectID).to.equal("In Preparation");
 
         // Test the object id when the parent node and child node are modified at the same time
-        await UPDATE(adminService.entities.RootEntity)
+        await UPDATE(adminService.entities.RootEntity, {ID: "01234567-89ab-cdef-0123-987654fedcba"})
         .with({
             ID: "01234567-89ab-cdef-0123-987654fedcba",
             name: "RootEntity name changed",
@@ -398,7 +398,7 @@ describe("change log integration test", () => {
         expect(updateEntityChange.objectID).to.equal("Open");
 
         // Tests the object id when the parent node update and child node deletion occur simultaneously
-        await UPDATE(adminService.entities.RootEntity)
+        await UPDATE(adminService.entities.RootEntity, {ID: "01234567-89ab-cdef-0123-987654fedcba"})
         .with({
             ID: "01234567-89ab-cdef-0123-987654fedcba",
             name: "RootEntity name del",