build(deps): bump slackapi/slack-github-action from 1.25.0 to 2.0.0

[PavelSBorisov]

Description:
This PR updates the slack-github-action to the newest major version https://github.com/slackapi/slack-github-action/releases/tag/v2.0.0
Implements the new variable to allow templated payloads which were enabled by default in the previous version - https://github.com/slackapi/slack-github-action/releases/tag/v2.0.0#only-one-payload-input-can-be-provided
Related issue(s):

Fixes #16749

Notes for reviewer:
N/A

Checklist

• Documented (Code comments, README, etc.)
• Tested (unit, integration, etc.)

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.00% (target: -1.00%)	✅ ∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (65b085a)	97916	64095	65.46%
Head commit (f2d746b)	97916 (+0)	64095 (+0)	65.46% (+0.00%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#16773)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.75%. Comparing base (65b085a) to head (f2d746b).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@            Coverage Diff             @@
##             develop   #16773   +/-   ##
==========================================
  Coverage      63.75%   63.75%           
  Complexity     20535    20535           
==========================================
  Files           2540     2540           
  Lines          95151    95151           
  Branches        9941     9941           
==========================================
  Hits           60668    60668           
  Misses         30866    30866           
  Partials        3617     3617           

[rbarkerSL]

I ran a test against this branch on prepare-xts-candidate: https://github.com/hashgraph/hedera-services/actions/runs/12035146720

It failed because the incoming webhook isn't set correctly. I believe that it wants SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK to be SLACK_WEBHOOK_TYPE: 'incoming-webhook'

[PavelSBorisov]

I ran a test against this branch on prepare-xts-candidate: https://github.com/hashgraph/hedera-services/actions/runs/12035146720
It failed because the incoming webhook isn't set correctly. I believe that it wants SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK to be SLACK_WEBHOOK_TYPE: 'incoming-webhook'

Ran another test after fixing the above, result seems to be reported correctly now:
https://github.com/hashgraph/hedera-services/actions/runs/12067628115/job/33651001636

fixed

[rbarkerSL]

Looks great