Clean up unreleased API surface

Since cli-module-auth and cli-module-actions are not yet released,
remove deprecated exports instead of keeping them. Also make httpJson
and getSecretStore internal to cli-node, duplicating the small httpJson
wrapper locally in each consuming package.

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
Made-with: Cursor

packages/cli-module-actions/package.json

@@ -35,6 +35,7 @@
   "dependencies": {
     "@backstage/cli-module-auth": "workspace:^",
     "@backstage/cli-node": "workspace:^",
+    "@backstage/errors": "workspace:^",
     "cleye": "^2.3.0"
   },
   "devDependencies": {