ci/cd: fix IPv6 timeouts with force-ipv4 action

This commit introduces the `force-ipv4` GitHub action to address
connectivity issues caused by the lack of IPv6 support in GitHub
runners. Details:
- actions/runner#3138
- actions/runner-images#668

This change solves connection problems when Node's `fetch` API fails due
to `UND_ERR_CONNECT_TIMEOUT` errors. Details:
- actions/runner-images#9540
- actions/runner#3213

This action disables IPv6 at the system level, ensuring all outging
requests use IPv4. Resolving connectivity issues when running external
URL checks and Docker build checks.

This solution is a temporary workaround until GitHub runners support
IPv6 or Node `fetch` API has a working solution such as Happy Eyeball.
Detais:
- nodejs/node#41625
- nodejs/undici#1531

.github/actions/force-ipv4/action.yml

@@ -0,0 +1,12 @@
+inputs:
+  project-root:
+    required: false
+    default: '.'
+runs:
+  using: composite
+  steps:
+    -
+      name: Run prefer IPv4 script
+      shell: bash
+      run: ./.github/actions/force-ipv4/force-ipv4.sh
+      working-directory: ${{ inputs.project-root }}