Bump @slack/client from 3.16.0 to 4.1.0

[dependabot-preview]

Bumps @slack/client from 3.16.0 to 4.1.0.

Release notes

Sourced from slack/client's releases.

v4.1.0

• IncomingWebhook.send() works with both callbacks and Promises (#508) - thanks clavin
• Completes type defintions for all WebClient method arguments (#512) - thanks clavin
• Allows files.upload to work with Buffers (in addition to ReadableStreams) (#500) - thanks KharitonOff
• Allows any WebClient methods argument to work with binary types (#519) - thanks clavin and aoberoi
• Fails when WebClient.apiCall() options don't look like the right type (#522) - thanks aoberoi
• Fixes TypeScript compile errors in node >=6 <=8 related to callbackify (#518) - thanks aoberoi
• Fixes mismatched parenthesis in RTMClient usage example documentation (#511) - thanks parthsr
• Adds examples directory back to the repository (#520) - thanks aoberoi

v4.0.1

• Fixes crash in projects where "name" or "version" were not defined in the package.json file (#478) - thanks wilhelmklopp clavin aoberoi
• Fixes IncomingWebhook.send() to parse the response as text instead of JSON (#477) - thanks aoberoi
• Allows IncomingWebhook to be initialized without defaults (#479) - thanks aoberoi
• Allows WebClient to be initialized without a token in TypeScript (#482) - thanks aoberoi
• Allows unspecificed arguments to be used with WebClient method aliases and apiCall() (#484) - thanks clavin
• Exports method argument types as top level exports in the type declarations (#483) - thanks aoberoi
• Fixes inaccurate property type for as_user in ChatPostMessageArguments (#475) - thanks harveyr
• Improves the OAuthAccessArguments and OAuthTokenArguments types (#481) - thanks aoberoi

v4.0.0

Breaking Changes If you are upgrading from a previous version, follow our comprehensive
Migration Guide to learn how to transport
your app into the new, shiny, future!

WebClient

• New apiCall(method, options) public API for making generic Web API calls.
• Improved logging
• Improved error management
• Configuration for custom http Agent
• Custom TLS configuration
• Tons of performance improvements

RTMClient

• Improved message queuing - No need to wait for client to connect before sending a message.
• Lifecycle events driven by an all-new state machine
• New keep-alive algorithm
• Improved logging
• Improved error management
• Configuration for custom http Agent
• Custom TLS configuration
• Tons of performance improvements

General

• TypeScript declarations available for all APIs 🎉
• Updates all dependencies to their latest version
• Drops support for node versions less than 6.0
  ... (truncated)

Commits

• 8f541d1 v4.1.0
• bc36e4b Merge branch 'master' into rel-v4.1.0
• b3eabbf Merge pull request #522 from aoberoi/apicall-detect-bad-arguments
• 36dc334 WebClient.apiCall() will detect some types of bad arguments, fixes #521
• 7bf45d1 WIP v4.1.0
• d42a3e5 Merge pull request #520 from aoberoi/restore-examples
• 7246076 include examples of SDK usage, fixes #474
• e9a5e2d Merge pull request #519 from aoberoi/clavin-feat-webclient-binary-data
• 7a97825 always have a filename attribute for binary content in a multipart/form-data ...
• 5f00431 generalize the argument name in tests, be more specific about when filename i...
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot ignore this [minor|major] version will close this PR and stop Dependabot creating any more for this minor/major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
• @dependabot use [this|these] label[s] will set the current labels as the default for future PRs for this repo and language

Additionally, you can set the following in your Dependabot dashboard:

• Update frequency (including time of day and day of week)
• Automerge options (never/patch/minor, and dev/runtime dependencies)
• Out-of-range updates (receive only lockfile updates, if desired)

Finally, you can contact us by mentioning @dependabot.