goreleaser: update config to v2 format

src/go/.goreleaser.yaml

@@ -1,3 +1,5 @@
+---
+version: 2
 project_name: rpk
 builds:
   # rpk-windows-and-linux is deprecated; will be replaced by rpk-windows, rpk-linux, rpk-linux-microsoft-go
@@ -124,30 +126,30 @@ brews:
     repository:
       owner: redpanda-data
       name: homebrew-tap
-    folder: Formula
+    directory: Formula
     skip_upload: auto
     ids:
       - rpk-zip
     extra_install: |
       generate_completions_from_executable(bin/"rpk", "generate", "shell-completion", base_name: "rpk")
     caveats: |
-        Redpanda Keeper (rpk) is Redpanda's command line interface (CLI)
-        utility. The rpk commands let you configure, manage, and tune
-        Redpanda clusters. They also let you manage topics, groups,
-        and access control lists (ACLs).
-        Start a three-node docker cluster locally:
+      Redpanda Keeper (rpk) is Redpanda's command line interface (CLI)
+      utility. The rpk commands let you configure, manage, and tune
+      Redpanda clusters. They also let you manage topics, groups,
+      and access control lists (ACLs).
+      Start a three-node docker cluster locally:
 
-            rpk container start -n 3
+          rpk container start -n 3
 
-        Interact with the cluster using commands like:
+      Interact with the cluster using commands like:
 
-            rpk topic list
+          rpk topic list
 
-        When done, stop and delete the docker cluster:
+      When done, stop and delete the docker cluster:
 
-            rpk container purge
+          rpk container purge
 
-        For more examples and guides, visit: https://docs.redpanda.com
+      For more examples and guides, visit: https://docs.redpanda.com
     commit_author:
       name: vbotbuildovich
       email: [email protected]