workflows: Fix action name

We have a few actions in the `payload-after-push.*.yaml` that are
referring to Confidential Containers, but they should be referring to
Kata Containers instead.

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

.github/workflows/payload-after-push-amd64.yaml

@@ -75,7 +75,7 @@ jobs:
     needs: create-kata-tarball
     runs-on: ubuntu-latest
     steps:
-      - name: Login to Confidential Containers quay.io
+      - name: Login to Kata Containers quay.io
         uses: docker/login-action@v2
         with:
           registry: quay.io

.github/workflows/payload-after-push-arm64.yaml

@@ -83,7 +83,7 @@ jobs:
     needs: create-kata-tarball
     runs-on: arm64
     steps:
-      - name: Login to Confidential Containers quay.io
+      - name: Login to Kata Containers quay.io
         uses: docker/login-action@v2
         with:
           registry: quay.io

.github/workflows/payload-after-push-s390x.yaml

@@ -82,7 +82,7 @@ jobs:
     needs: create-kata-tarball
     runs-on: s390x
     steps:
-      - name: Login to Confidential Containers quay.io
+      - name: Login to Kata Containers quay.io
         uses: docker/login-action@v2
         with:
           registry: quay.io

.github/workflows/payload-after-push.yaml

@@ -31,7 +31,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
 
-      - name: Login to Confidential Containers quay.io
+      - name: Login to Kata Containers quay.io
         uses: docker/login-action@v2
         with:
           registry: quay.io