chore(core): nx plugin modification @nx-tools/nx-container (#29394)

<!-- Please make sure you have read the submission guidelines before
posting an PR -->
<!--
https://github.com/nrwl/nx/blob/master/CONTRIBUTING.md#-submitting-a-pr
-->

<!-- Please make sure that your commit message follows our format -->
<!-- Example: `fix(nx): must begin with lowercase` -->

<!-- If this is a particularly complex change or feature addition, you
can request a dedicated Nx release for this pull request branch. Mention
someone from the Nx team or the `@nrwl/nx-pipelines-reviewers` and they
will confirm if the PR warrants its own release for testing purposes,
and generate it for you if appropriate. -->

This is just a simple url update, you can observe the old url is no
longer valid because the structure of the git repo has changed

Co-authored-by: Michael Haas <[email protected]>

community/approved-plugins.json

@@ -387,7 +387,7 @@
   {
     "name": "@nx-tools/nx-container",
     "description": "Nx plugin to build OCI containers with Docker, Podman or Kaniko.",
-    "url": "https://github.com/gperdomor/nx-tools/tree/main/packages/nx-container"
+    "url": "https://github.com/gperdomor/nx-tools/tree/main/plugins/nx-container"
   },
   {
     "name": "@nxrocks/nx-melos",