fix: update postcss override to 8.5.25 for lockfile consistency

- Update pnpm-workspace.yaml postcss override to ^8.5.25
- Sync lockfile with package.json postcss update

pnpm-lock.yaml

@@ -11,7 +11,7 @@ overrides:
   uuid: ^9.0.1
   fast-uri: ^3.1.3
   '@hono/node-server': ^1.19.13
-  postcss: ^8.5.19
+  postcss: ^8.5.25
   tmp: ^0.2.6
   sharp: ^0.35.3
   brace-expansion: ^5.0.8

pnpm-workspace.yaml

@@ -20,7 +20,7 @@ overrides:
   uuid: "^9.0.1"
   fast-uri: "^3.1.3"
   "@hono/node-server": "^1.19.13"
-  postcss: "^8.5.19"
+  postcss: "^8.5.25"
   # Dwingt alle diepe subdependencies (zoals lhci) naar de veilige tmp-versie
   tmp: "^0.2.6"
   # NIEUWE SECURITY PATCHES: