Add privileged schema definition (#2777)

Co-authored-by: 6543 <m.huber@kithara.com>

pipeline/frontend/yaml/linter/schema/.woodpecker/test-step.yml

@@ -17,6 +17,7 @@ steps:
     commands: go test
 
   commands:
+    privileged: true
     image: golang
     commands:
       - go get

pipeline/frontend/yaml/linter/schema/schema.json

@@ -212,6 +212,9 @@
         "image": {
           "$ref": "#/definitions/step_image"
         },
+        "privileged": {
+          "$ref": "#/definitions/step_privileged"
+        },
         "pull": {
           "$ref": "#/definitions/step_pull"
         },
@@ -423,6 +426,11 @@
       "description": "Read more: https://woodpecker-ci.org/docs/usage/pipeline-syntax#image",
       "type": "string"
     },
+    "step_privileged": {
+      "description": "Run the step in privileged mode. Read more: https://woodpecker-ci.org/docs/usage/pipeline-syntax#privileged",
+      "type": "boolean",
+      "default": false
+    },
     "step_pull": {
       "description": "Always pull the latest image on pipeline execution Read more: https://woodpecker-ci.org/docs/usage/pipeline-syntax#image",
       "type": "boolean"
@@ -561,6 +569,9 @@
         "image": {
           "$ref": "#/definitions/step_image"
         },
+        "privileged": {
+          "$ref": "#/definitions/step_privileged"
+        },
         "pull": {
           "$ref": "#/definitions/step_pull"
         },