fix(deps): update dependency @slack/web-api to v7.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@slack/web-api (source)	7.3.4 -> 7.4.0

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Release Notes

slackapi/node-slack-sdk (@​slack/web-api)

### [`v7.4.0`](https://redirect.github.com/slackapi/node-slack-sdk/releases/tag/%40slack/web-api%407.4.0) [Compare Source](https://redirect.github.com/slackapi/node-slack-sdk/compare/@slack/web-api@7.3.4...@slack/web-api@7.4.0) ### What's Changed We've released two new APIs for use via `@slack/web-api`: - https://api.slack.com/methods/conversations.requestSharedInvite.approve - https://api.slack.com/methods/conversations.requestSharedInvite.deny ### Full Changelog [`a3a06ec`](https://redirect.github.com/slackapi/node-slack-sdk/commit/a3a06ecb) web-api(feat): add support for `conversations.requestShared` `approve` , `deny` APIs ([#​1843](https://redirect.github.com/slackapi/node-slack-sdk/issues/1843))

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