get-installation-access-token: return a struct, not just the token

We recently ran into an expiring installation access token. To remedy
that, we will want to return not only the token but also its expiry
date. Prepare for that.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

.github/workflows/build-and-deploy.yml

@@ -66,7 +66,7 @@ jobs:
             )
 
             const getInstallationAccessToken = require('./get-installation-access-token')
-            const accessToken = await getInstallationAccessToken(
+            const { token: accessToken } = await getInstallationAccessToken(
               console,
               appId,
               privateKey,

.github/workflows/create-azure-self-hosted-runners.yml

@@ -80,7 +80,7 @@ jobs:
           )
 
           const getInstallationAccessToken = require('./get-installation-access-token')
-          const accessToken = await getInstallationAccessToken(
+          const { token: accessToken } = await getInstallationAccessToken(
             console,
             appId,
             privateKey,

get-installation-access-token.js

@@ -7,6 +7,8 @@ module.exports = async (context, appId, privateKey, installation_id) => {
         'POST',
         `/app/installations/${installation_id}/access_tokens`)
     if (answer.error) throw answer.error
-    if (answer.token) return answer.token
+    if (answer.token) return {
+        token: answer.token
+    }
     throw new Error(`Unhandled response:\n${JSON.stringify(answer, null, 2)}`)
 }