fix: determine exact k8s version step (#1728)

Author: ferruhcihan

.github/workflows/integration.yml

@@ -367,7 +367,7 @@ jobs:
           # Cluster name must be no longer than 63 characters
       - name: Determine exact k8s version
         run: |
-          echo LINODE_K8S_VERSION=$(linode-cli lke versions-list --json | jq -ce --arg version "${{ matrix.kubernetes_versions }}" '.[] | select(.id | tostring | startswith($version)) | .id') >> $GITHUB_ENV
+          echo LINODE_K8S_VERSION=$(linode-cli lke versions-list --json | jq -ce --arg version "$(echo ${{ matrix.kubernetes_versions }} | sed -E 's/^([0-9]+\.[0-9])$/\10/')" '.[] | select(.id | tostring | startswith($version)) | .id') >> $GITHUB_ENV
       - name: Create k8s cluster for testing
         run: |
           linode-cli lke cluster-create \