Remove storybook v7 dependency, hardcode v7 expected exports in tests, reset lockfiles

Co-authored-by: dmichon-msft <26827560+dmichon-msft@users.noreply.github.com>

Author: Copilot

common/config/rush/nonbrowser-approved-packages.json

@@ -474,14 +474,6 @@
       "name": "@storybook/react-webpack5",
       "allowedCategories": [ "libraries", "tests" ]
     },
-    {
-      "name": "@storybook/telemetry",
-      "allowedCategories": [ "libraries" ]
-    },
-    {
-      "name": "@storybook/telemetry-7",
-      "allowedCategories": [ "libraries" ]
-    },
     {
       "name": "@storybook/telemetry-8",
       "allowedCategories": [ "libraries" ]