docs: update README to v2

Reviewed-on: #1

README.md

@@ -16,7 +16,7 @@ The key must be tied to a service account which has editor privileges on SKE res
 - name: Install STACKIT CLI
   uses: https://stackit-solutions.git.onstackit.cloud/actions/install-stackit-cli@v1
 - name: Hibernate cluster
-  uses: https://stackit-solutions.git.onstackit.cloud/actions/ske-operations@v1
+  uses: https://stackit-solutions.git.onstackit.cloud/actions/ske-operations@v2
   with:
     action: hibernate
     region: eu01

action.yml

@@ -33,11 +33,16 @@ inputs:
     description: "Wait until target state of operation has been reached."
     required: false
     default: "true"
+outputs:
+  state-match:
+    description: "A boolean value to indicate that the target state was already reached"
+    value: ${{ steps.trigger-op.outputs.state-match }}
 
 runs:
   using: composite
   steps:
     - name: Trigger SKE operation
+      id: trigger-op
       shell: sh
       env:
         INPUT_ACTION: ${{ inputs.action }}
@@ -129,6 +134,7 @@ runs:
         if [ "$CURRENT_STATUS" != "$INITIAL_STATUS" ]; then
           if [ "$CURRENT_STATUS" = "$TARGET_STATUS" ]; then
             echo "Cluster is already in desired state."
+            echo "state-match=true" >> "$GITHUB_OUTPUT"
             exit 0
           fi
 
@@ -136,6 +142,8 @@ runs:
           exit 1
         fi
 
+        echo "state-match=false" >> "$GITHUB_OUTPUT"
+
         stackit curl --fail -X POST "https://ske.api.stackit.cloud/v2/projects/$INPUT_PROJECT_ID/regions/$INPUT_REGION/clusters/$INPUT_CLUSTER_NAME/$ENDPOINT"
 
         if [ "$WAIT" != "true" ]; then