chore: update slack link

Author: andrea-kyurchiev

content/en/redirects/slack.md

@@ -2,7 +2,7 @@
 title: slack
 url: "/slack"
 type: redirects
-redirect: "https://join.slack.com/t/innersourcecommons/shared_invite/zt-2yyv81kz4-azF2u20HQ2K42JBmI0FK4A"
+redirect: "https://join.slack.com/t/innersourcecommons/shared_invite/zt-3s74st0sx-TkCjoGu2LvxBNc~vRJnYKA"
 ---
 
 <!-- This link generated on the "Invite Links" tab of https://innersourcecommons.slack.com/admin/invites -->