OAPI: change worker 'nickname' to just 'name'

There was no need to have the extra four letters 'nick', and some parts
of the code were already using just 'name' for the workers. This simplifies
and unifies things.

pkg/api/flamenco-openapi.yaml

@@ -744,20 +744,20 @@ components:
 
     WorkerRegistration:
       type: object
-      required: [secret, platform, supported_task_types, nickname]
+      required: [secret, platform, supported_task_types, name]
       properties:
         secret: { type: string }
         platform: { type: string }
         supported_task_types:
           type: array
           items: { type: string }
-        nickname: { type: string }
+        name: { type: string }
 
     RegisteredWorker:
       type: object
       properties:
         uuid: { type: string, format: uuid }
-        nickname: { type: string }
+        name: { type: string }
         address: { type: string }
         status: { $ref: "#/components/schemas/WorkerStatus" }
         platform: { type: string }
@@ -767,7 +767,7 @@ components:
           items: { type: string }
       required:
         - uuid
-        - nickname
+        - name
         - address
         - status
         - platform
@@ -782,12 +782,12 @@ components:
     WorkerSignOn:
       type: object
       properties:
-        nickname: { type: string }
+        name: { type: string }
         supported_task_types:
           type: array
           items: { type: string }
         software_version: { type: string }
-      required: [nickname, supported_task_types, software_version]
+      required: [name, supported_task_types, software_version]
 
     WorkerStateChange:
       type: object
@@ -1389,7 +1389,7 @@ components:
           type: string
           format: uuid
           description: UUID of the Worker
-        "nickname": { type: string, description: "Name of the worker" }
+        "name": { type: string, description: "Name of the worker" }
         "updated":
           type: string
           format: date-time
@@ -1399,7 +1399,7 @@ components:
         "status_change":
           $ref: "#/components/schemas/WorkerStatusChangeRequest"
         "version": { type: string }
-      required: [id, nickname, updated, status, version]
+      required: [id, name, updated, status, version]
 
     SocketIOSubscription:
       type: object
@@ -1443,7 +1443,7 @@ components:
       description: Basic information about a Worker.
       properties:
         "id": { type: string, format: uuid }
-        "nickname": { type: string }
+        "name": { type: string }
         "status": { $ref: "#/components/schemas/WorkerStatus" }
         "status_change":
           $ref: "#/components/schemas/WorkerStatusChangeRequest"
@@ -1459,7 +1459,7 @@ components:
         "version":
           type: string
           description: Version of Flamenco this Worker is running
-      required: [id, nickname, status, version]
+      required: [id, name, status, version]
 
     Worker:
       description: All information about a Worker
@@ -1477,7 +1477,7 @@ components:
               items: { type: string }
           required:
             - id
-            - nickname
+            - name
             - status
             - ip_address
             - platform