remove cds-dk installation from build script of db (#184)

This PR removes the @sap/cds-dk installation from the build script in
db/package.json. Now, the build script relies on a previous local
installation of the cds-dk, e.g. done with a maven build. Or a globally
installed cds-dk version is used.
The mbt build works fine, because first the srv module is built, then
the db module.

Author: mofterdinger

db/package.json

@@ -8,6 +8,6 @@
   },
   "scripts": {
     "start": "node node_modules/@sap/hdi-deploy/deploy.js",
-    "build": "npm i && npx -p @sap/cds-dk@^6 cds build .. --for hana --production"
+    "build": "npm i && npx cds build .. --for hana --production"
   }
 }

mta-single-tenant.yaml

@@ -40,6 +40,8 @@ modules:
       builder: custom
       commands:
         - npm run build
+      requires:
+        - name: bookshop-srv
     requires:
       - name: bookshop-hdi-container
 # --------------------- APPROUTER MODULE ---------------------