[Github] Handle the case when the Github deployment status returns null (#5704)

* Handle the case when the Github deployment status returns null

* Integration test null latestStatus response from Github Deployments

Co-authored-by: repo-ranger[bot] <39074581+repo-ranger[bot]@users.noreply.github.com>

services/github/github-deployments.tester.js

@@ -11,6 +11,7 @@ const validMessages = [
   'in progress',
   'queued',
   'pending',
+  'no status yet',
 ]
 const isValidMessages = Joi.equal(...validMessages).required()
 
@@ -27,3 +28,19 @@ t.create('Deployments (environment not found)')
     label: 'state',
     message: 'environment not found',
   })
+
+t.create('Deployments (status not yet available)')
+  .get('/badges/shields/shields-staging.json')
+  .intercept(nock =>
+    nock('https://api.github.com/')
+      .post('/graphql')
+      .reply(200, {
+        data: {
+          repository: { deployments: { nodes: [{ latestStatus: null }] } },
+        },
+      })
+  )
+  .expectBadge({
+    label: 'state',
+    message: 'no status yet',
+  })