Slack upload fails with TypeError: this.robot.adapter.client.web.files.uploadV2 is not a function

[stephenyeargin]

Describe the bug

When using with the listed versions, the script package is unable to Slack's file upload API.

To Reproduce

Steps to reproduce the behavior:

1. Data source: Grafana Cloud Free
2. Command entered: hubot graf db linux-node-fleet-overview
3. See error

Overview - [Slack files.upload Error: can't upload file] - https://orgname.grafana.net/d/nodes/?panelId=1&fullscreen&from=now-6h&to=now
[9:52](https://orgname.slack.com/archives/D03536NFP/p1721573563858969)
Uptime - [Slack files.upload Error: can't upload file] - https://orgname.grafana.net/d/nodes/?panelId=2&fullscreen&from=now-6h&to=now
[9:52](https://orgname.slack.com/archives/D03536NFP/p1721573570361849)
Hostname - [Slack files.upload Error: can't upload file] - https://orgname.grafana.net/d/nodes/?panelId=3&fullscreen&from=now-6h&to=now
[9:53](https://orgname.slack.com/archives/D03536NFP/p1721573586190369)
Kernel version - [Slack files.upload Error: can't upload file] - https://orgname.grafana.net/d/nodes/?panelId=4&fullscreen&from=now-6h&to=now
[9:53](https://orgname.slack.com/archives/D03536NFP/p1721573592491159)
OS - [Slack files.upload Error: can't upload file] - https://orgname.grafana.net/d/nodes/?panelId=5&fullscreen&from=now-6h&to=now

Expected behavior

The TypeError indicates we may need to do some extra checking of the loaded-in Slack adapter, and possibly switch behavior if the uploadV2 method is not present.

Logs

{"level":20,"time":1721573681177,"pid":20,"hostname":"4a005511c918","name":"hubot","msg":"SlackClient#send() room: D03536NFP, message: Disk - [Slack files.upload Error: can't upload file] - https://orgname.grafana.net/d/nodes/?panelId=17&fullscreen&from=now-6h&to=now"}
{"level":20,"time":1721573687485,"pid":20,"hostname":"4a005511c918","name":"hubot","msg":"Uploading file: 6462 bytes, content-type[image/png]"}
{"level":50,"time":1721573687485,"pid":20,"hostname":"4a005511c918","name":"hubot","err":{"type":"TypeError","message":"this.robot.adapter.client.web.files.uploadV2 is not a function","stack":"TypeError: this.robot.adapter.client.web.files.uploadV2 is not a function\n  at SlackUploader.upload (/opt/hubot/node_modules/hubot-grafana/src/adapters/implementations/SlackUploader.js:47:49)\n  at Bot.sendDashboardChart (/opt/hubot/node_modules/hubot-grafana/src/Bot.js:118:27)\n  at runMicrotasks (<anonymous>:null:null)\n  at processTicksAndRejections (node:internal/process/task_queues:96:5)\n  at Bot.sendDashboardChartFromString (/opt/hubot/node_modules/hubot-grafana/src/Bot.js:88:7)\n"},"msg":"SlackUploader.upload.uploadFile"}
{"level":20,"time":1721573687487,"pid":20,"hostname":"4a005511c918","name":"hubot","msg":"SlackClient#send() room: D03536NFP, message: Disk reads/writes - [Slack files.upload Error: can't upload file] - https://orgname.grafana.net/d/nodes/?panelId=18&fullscreen&from=now-6h&to=now"}
{"level":20,"time":1721573693787,"pid":20,"hostname":"4a005511c918","name":"hubot","msg":"Uploading file: 15423 bytes, content-type[image/png]"}
{"level":50,"time":1721573693787,"pid":20,"hostname":"4a005511c918","name":"hubot","err":{"type":"TypeError","message":"this.robot.adapter.client.web.files.uploadV2 is not a function","stack":"TypeError: this.robot.adapter.client.web.files.uploadV2 is not a function\n  at SlackUploader.upload (/opt/hubot/node_modules/hubot-grafana/src/adapters/implementations/SlackUploader.js:47:49)\n  at Bot.sendDashboardChart (/opt/hubot/node_modules/hubot-grafana/src/Bot.js:118:27)\n  at runMicrotasks (<anonymous>:null:null)\n  at processTicksAndRejections (node:internal/process/task_queues:96:5)\n  at Bot.sendDashboardChartFromString (/opt/hubot/node_modules/hubot-grafana/src/Bot.js:88:7)\n"},"msg":"SlackUploader.upload.uploadFile"}

Software:

• Grafana: Grafana Cloud
• Hubot: 4.1.0
• Adapter: [email protected] / @slack/[email protected]
• Node: v16.20.2
• NPM: 8.19.4

Additional context

Add any other context about the problem here.

It looks like it's getting the image itself without issue, but running into trouble with a mismatch between the (now legacy) Slack adapter for Hubot and the @slack/web-api version. Not entirely sure what it should try to fall back to.