add telemetryMode option to host.json (#4078)

Signed-off-by: Juan Pablo Garcia Ripa <sarabadu@gmail.com>

Author: Sarabadu

src/schemas/json/host.json

@@ -1491,6 +1491,10 @@
           "description": "Where the language worker supports 'Cancellation', send canceled invocations to the worker. If not set, defaults to true.",
           "type": "boolean",
           "default": true
+        },
+        "telemetryMode": {
+          "description": "Used to enable output of logs and traces in an OpenTelemetry output format to one or more endpoints that support OpenTelemetry.",
+          "enum": ["OpenTelemetry"]
         }
       },
       "required": ["version"],

src/test/host/host.v2.json

@@ -200,6 +200,7 @@
     "lockAcquisitionTimeout": "00:01:00",
     "lockPeriod": "00:00:15"
   },
+  "telemetryMode": "OpenTelemetry",
   "version": "2.0",
   "watchDirectories": ["Shared", "Test"],
   "watchFiles": ["myFile.txt"]