Update dependency slack to v5

renovate[bot] · web-flow · commit 97a0ae05c2bd · 2025-04-12T19:30:58.000Z
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -1,7 +1,7 @@
 ---
 version: 2.1
 orbs:
-  slack: circleci/slack@4.15.0
+  slack: circleci/slack@5.1.1
 jobs:
   ensure_formatting:
     docker:
