deps: update web tooling deps (#4463)

Fixes https://github.com/scionproto/scion/security/dependabot/65

<!-- Reviewable:start -->
This change is [<img src="https://reviewable.io/review_button.svg"
height="34" align="absmiddle"
alt="Reviewable"/>](https://reviewable.io/reviews/scionproto/scion/4463)
<!-- Reviewable:end -->

private/mgmtapi/tools/README.md

@@ -0,0 +1,17 @@
+# Web Dependencies
+
+This directory contains the web dependencies for the management API tooling.
+
+To reflect changes in the `package.json` file in the `pnpm-lock.yaml` run the
+following command (from the workspace root directory):
+
+```bash
+bazel run -- @pnpm//:pnpm --dir $PWD/private/mgmtapi/tools install --lockfile-only
+```
+
+To update dependencies in the `pnpm-lock.yaml` file run the following command
+(from the workspace root directory):
+
+```bash
+bazel run -- @pnpm//:pnpm --dir $PWD/private/mgmtapi/tools update --lockfile-only
+```

private/mgmtapi/tools/package.json

@@ -1,9 +1,7 @@
 {
     "dependencies": {
         "@redocly/cli": "1.0.2",
-        "@stoplight/spectral-cli": "^6.11.0",
-        "lodash.get": "^4.4.2",
-        "lodash.set": "^4.3.2"
+        "@stoplight/spectral-cli": "^6.11.0"
     },
     "pnpm": {
         "packageExtensions": {