gha: Split payload-after-push-*.yaml

Let's split those actions into two different ones:
* Build the kata-static tarball
* Publish the kata-deploy payload

We're doing this as, later in this series we'll start taking advantage
of both pieces.

Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>

.github/workflows/publish-kata-deploy-payload-s390x.yaml

@@ -0,0 +1,42 @@
+name: CI | Publish kata-deploy payload for s390x
+on:
+  workflow_call:
+    inputs:
+      tarball-suffix:
+        required: false
+        type: string
+      registry:
+        repo: true
+        type: string
+      tag:
+        required: true
+        type: string
+
+jobs:
+  kata-payload:
+    runs-on: s390x
+    steps:
+      - name: Adjust a permission for repo
+        run: |
+          sudo chown -R $USER:$USER $GITHUB_WORKSPACE
+
+      - uses: actions/checkout@v3
+
+      - name: get-kata-tarball
+        uses: actions/download-artifact@v3
+        with:
+          name: kata-static-tarball-s390x${{ inputs.tarball-suffix }}
+
+      - name: Login to Kata Containers quay.io
+        uses: docker/login-action@v2
+        with:
+          registry: quay.io
+          username: ${{ secrets.QUAY_DEPLOYER_USERNAME }}
+          password: ${{ secrets.QUAY_DEPLOYER_PASSWORD }}
+
+      - name: build-and-push-kata-payload
+        id: build-and-push-kata-payload
+        run: |
+          ./tools/packaging/kata-deploy/local-build/kata-deploy-build-and-upload-payload.sh \
+          $(pwd)/kata-static.tar.xz \
+          quay.io/kata-containers/${{ inputs.repo }} ${{ inputs.tag }}