Allow MI to create another MI test

backend/src/ee/routes/v3/machineIdentity.ts

@@ -37,7 +37,7 @@ router.post(
 router.post(
   "/",
   requireAuth({
-    acceptedAuthModes: [AuthMode.JWT]
+    acceptedAuthModes: [AuthMode.JWT, AuthMode.MACHINE_ACCESS_TOKEN]
   }),
   machineIdentityController.createMachineIdentity
 );

backend/src/validation/machineIdentity.ts

@@ -51,7 +51,7 @@ export const CreateMachineIdentityV3 = z.object({
       .array()
       .min(1)
       .default([{ ipAddress: "0.0.0.0/0" }]),
-    accessTokenTTL: z.number().int().min(1)
+    accessTokenTTL: z.number().int().min(1).default(7200)
   })
 });