Bump apigeetool from 0.5.4 to 0.16.5

Bumps [apigeetool](https://github.com/apigee/apigeetool-node) from 0.5.4 to 0.16.5.
- [Release notes](https://github.com/apigee/apigeetool-node/releases)
- [Commits](apigee/apigeetool-node@v0.5.4...v0.16.5)

---
updated-dependencies:
- dependency-name: apigeetool
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package.json

@@ -12,7 +12,7 @@
   "homepage": "https://github.com/NHSDigital/eligibility-signposting-api",
   "devDependencies": {
     "@openapitools/openapi-generator-cli": "^2.5.1",
-    "apigeetool": "^0.5.4",
+    "apigeetool": "^0.16.5",
     "license-checker": "^25.0.1",
     "minimist": "^1.2.2"
   }