Update dependency slack to v6

renovate[bot] · web-flow · commit f0fb909cf186 · 2025-10-06T15:42:35.000Z
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -1,7 +1,7 @@
 version: 2.1
 
 orbs:
-  slack: circleci/slack@5.1.1
+  slack: circleci/slack@6.0.0
   scotty-orb: cci-releng/scotty-orb@0.0.12
 
 executors:
