* feat: support v2.1.0
Events equal to `start` do not require the timestamp of a previous
message posted.
All other Events depend on the timestamp of the previous message posted.
rewrite according to v2.0.0 specs
[slackapi/slack-github-action v2.0.0 changes](https://github.com/slackapi/slack-github-action/releases/tag/v2.0.0#the-slack-api-method-now-must-be-specified-in-inputs)
update version used
v1.27.1 -> v2.1.0
* fix: invalid syntax
combine steps
fix validation of proper input `inputs.event`.
include "fake ternary" expression.
* fix: json parsing
* feat: change condition
* fix: basic text formatting
maintain basic text formatting that was originally intended
* test: invoke update condition
if `update-ts` is not `null` update the previous message using timestamp
value.
* test: remove test
* cleanup: remove id
* feat: support v2.1.0 spec
update and rewrite to v2.x.x specifications
Andy Pixley
Tyler
renovate[bot]
Alex Urbina