feat: update slack link (#2694)

public/_redirects

@@ -53,7 +53,7 @@ https://www.asyncapi.io/* https://www.asyncapi.com/:splat 301!
 /asyncapi-react https://asyncapi.github.io/asyncapi-react 301!
 
 # Slack
-/slack-invite https://join.slack.com/t/asyncapi/shared_invite/zt-27m89oa1t-ZC~UIa5B2Vujm6oq7fa~gQ 302!
+/slack-invite https://join.slack.com/t/asyncapi/shared_invite/zt-2doi7tnls-c0EgSJRI6rIW_kk1tmrwSQ 302!
 
 # Central Maven repository verification
 /OSSRH-63280 https://github.com/asyncapi/java-asyncapi
@@ -68,4 +68,4 @@ https://www.asyncapi.io/* https://www.asyncapi.com/:splat 301!
 # TOOLS-REDIRECTION:END
 
 # Additional redirection
-/community/meetings /community/events 301!
+/community/meetings /community/events 301!