Refactor workflow configurations to remove deprecated OS versions for k3d, kind, and microk8s deployments

.github/workflows/k3d.yaml

@@ -8,14 +8,16 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-20.04, ubuntu-22.04, ubuntu-24.04]
+        os: [ubuntu-22.04, ubuntu-24.04]
         #k3d: [v5.5.2, v5.6.0, v5.7.5]
         k3d: [v5.7.5]
     steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
       - name: "Create single cluster"
         uses: AbsaOSS/k3d-action@v2
         with:
-          k3d-version: ${{ matrix.k3d }}
+          k3d-version: ${{ matrix.k3d }}  
           cluster-name: "k3d-cluster"
       - name: Print Kubernetes Version
         run: |
@@ -26,8 +28,6 @@ jobs:
           kubectl get no
           kubectl get pods -A -o wide
           kubectl get sc
-      - name: Checkout repository
-        uses: actions/checkout@v2
       - name: Install OpenEBS
         run: |
           kubectl apply -f https://openebs.github.io/charts/openebs-operator.yaml

.github/workflows/kind.yaml

@@ -1,16 +1,14 @@
 name: Deploy on kind
-
 on:
   workflow_dispatch:
   schedule:
     - cron: "0 0 * * *" # This will run the workflow every day at midnight UTC
-
 jobs:
   deploy:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-20.04, ubuntu-22.04, ubuntu-24.04]
+        os: [ubuntu-22.04, ubuntu-24.04]
         #kind: [v0.21.0, v0.22.0, v0.23.0, v0.24.0, v0.25.0]
         kind: [v0.25.0]
     steps:

.github/workflows/microk8s.yaml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-20.04, ubuntu-22.04, ubuntu-24.04]
+        os: [ubuntu-22.04, ubuntu-24.04]
         #microk8s: [1.29/stable, 1.30/stable, 1.31/stable, 1.32/stable]
         microk8s: [1.32/stable]
     steps: