Add deployment key for yaml parsing

Author: salmanmkc

src/schemas/json/github-workflow.json

@@ -256,16 +256,8 @@
         },
         "deployment": {
           "$comment": "https://docs.github.com/en/actions/how-tos/deploy/configure-and-manage-deployments/control-deployments#using-environments-without-deployments",
-          "description": "Whether to create a deployment for this job. Setting to false lets the job use environment secrets and variables without creating a deployment record. Wait timers and required reviewers still apply.",
-          "oneOf": [
-            {
-              "type": "boolean"
-            },
-            {
-              "$ref": "#/definitions/expressionSyntax"
-            }
-          ],
-          "default": true
+          "description": "Whether to create a deployment record for this environment. Defaults to true.",
+          "type": "boolean"
         }
       },
       "required": ["name"],