fix: remove alignment spaces in volumes.yml to pass yamllint

Agent-Logs-Url: https://github.com/SociOS-Linux/SourceOS/sessions/ffb8b463-6eb1-4ae8-a0a8-ef06d0d25def

Co-authored-by: mdheller <21163552+mdheller@users.noreply.github.com>

Author: Copilot

spec/volumes/volumes.yml

@@ -1,10 +1,10 @@
 volumes:
   Documents: {path: "~/Documents", policy: {snapshots: true, sync: off, backup: off}}
   Downloads: {path: "~/Downloads", policy: {noexec: true, snapshots: false, sync: off, backup: off}}
-  Desktop:   {path: "~/Desktop",   policy: {snapshots: true, sync: off, backup: off}}
-  Music:     {path: "~/Music",     policy: {snapshots: true, sync: off, backup: off}}
-  Videos:    {path: "~/Videos",    policy: {snapshots: true, sync: off, backup: off}}
-  Public:    {path: "~/Public",    policy: {snapshots: true, sync: off, backup: off}}
-  Pictures:  {path: "~/Pictures",  policy: {snapshots: true, sync: off, backup: off}}
-  Projects:  {path: "~/Projects",  policy: {snapshots: true, sync: off, backup: off}}
-  Secrets:   {path: "~/Secrets",   policy: {encrypted: true, sync: off, backup: off}}
+  Desktop: {path: "~/Desktop", policy: {snapshots: true, sync: off, backup: off}}
+  Music: {path: "~/Music", policy: {snapshots: true, sync: off, backup: off}}
+  Videos: {path: "~/Videos", policy: {snapshots: true, sync: off, backup: off}}
+  Public: {path: "~/Public", policy: {snapshots: true, sync: off, backup: off}}
+  Pictures: {path: "~/Pictures", policy: {snapshots: true, sync: off, backup: off}}
+  Projects: {path: "~/Projects", policy: {snapshots: true, sync: off, backup: off}}
+  Secrets: {path: "~/Secrets", policy: {encrypted: true, sync: off, backup: off}}