chore: update healthcheck command to use bun instead of node in compose files

compose.prod.yml

@@ -15,7 +15,7 @@ services:
             test:
                 [
                     'CMD',
-                    'node',
+                    'bun',
                     '-e',
                     "require('http').get('http://localhost:4000', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})",
                 ]

compose.yml

@@ -15,7 +15,7 @@ services:
             test:
                 [
                     'CMD',
-                    'node',
+                    'bun',
                     '-e',
                     "require('http').get('http://localhost:4000', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})",
                 ]