Update views.* endpoints to use POST method instead of GET

[matthewnessworthy]

Fixes #111
Replaces #130 (because of merge conflicts)

First updated the SDK with the latest updates

rm -Rf generated/*
vendor/bin/jane-openapi generate --config-file=.jane-openapi.php
./bin/slack-api-client-generator spec:generate-patch
./bin/slack-api-client-generator spec:update

Then after updating the relevant HTTP methods in resources/slack-openapi-patched.json

./bin/slack-api-client-generator spec:generate-patch
./bin/slack-api-client-generator spec:update
vendor/bin/jane-openapi generate --config-file=.jane-openapi.php

[matthewnessworthy]

@damienalexandre please review

[damienalexandre]

#147 has been merged, you have to rebuild this PR from "main". Sorry about that 😋

[matthewnessworthy]

@damienalexandre no worries, all done

[damienalexandre]

The method on viewPublish/viewPush/viewUpdate is still "GET" but the parameters have been changed to "form parameter", am I missing something? viewOpen looks good.

[damienalexandre]

Thanks a lot!

[matthewnessworthy]

Glad i could help, thanks for the support and hand-holding!