Bump @sap/cds from 7.2.0 to 7.7.0

Bumps [@sap/cds](https://cap.cloud.sap/) from 7.2.0 to 7.7.0.

---
updated-dependencies:
- dependency-name: "@sap/cds"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -7,7 +7,7 @@
   "repository": "https://github.com/SAP-samples/sap-learning-extension-suite",
   "dependencies": {
     "@sap-cloud-sdk/http-client": "2.15.0",
-    "@sap/cds": "7.2.0",
+    "@sap/cds": "7.7.0",
     "@sap/cds-dk": "7.6.0",
     "@sap-cloud-sdk/resilience": "3.12.0",
     "express": "^4"