build(deps): bump slackapi/slack-github-action from 1.25.0 to 2.0.0 #27074

Job	Run time
Code / Compiles	3m 22s
Spotless / Check	1m 52s
Dependency (Module Info) / Check	1m 31s
Docker Determinism	0s
JRS Panel	0s
Gradle Determinism	0s
Hedera Node JRS Panel	0s
Snyk Scan	0s
HAPI Tests (Misc) / Standard	2m 24s
HAPI Tests (Node Death Reconnect) / Standard	1m 28s
HAPI Tests (Restart) / Standard	1m 28s
HAPI Tests (Smart Contract) / Standard	1m 32s
HAPI Tests (Crypto) / Standard	1m 28s
HAPI Tests (Time Consuming) / Standard	1m 30s
HAPI Tests (Token) / Standard	1m 38s
Unit Tests / Standard	2m 42s
	20m 55s

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