fix: use \K grep pattern for volume id extraction

Replace variable-length lookbehind with \K which GNU grep supports.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.gitea/workflows/deploy.yml

@@ -16,12 +16,10 @@ jobs:
           git pull
 
       - name: Deploy controller
-        run: |
-          nomad job run /opt/nomad-csi/csi/controller.nomad
+        run: nomad job run /opt/nomad-csi/csi/controller.nomad
 
       - name: Deploy node plugin
-        run: |
-          nomad job run /opt/nomad-csi/csi/node.nomad
+        run: nomad job run /opt/nomad-csi/csi/node.nomad
 
       - name: Verify CSI plugin healthy
         run: |
@@ -31,9 +29,8 @@ jobs:
       - name: Provision volumes
         run: |
           for vol in /opt/nomad-csi/csi/volumes/*.hcl; do
-            # Skip example/template files
             [[ "$vol" == *example* ]] && continue
-            vol_id=$(grep -Po '(?<=id\s{1,10}=\s{1,10}")[^"]+' "$vol" | head -1)
+            vol_id=$(grep -oP 'id\s*=\s*"\K[^"]+' "$vol" | head -1)
             if nomad volume status "$vol_id" > /dev/null 2>&1; then
               echo "Volume $vol_id already exists, skipping"
             else