s3: update minio dependency to v8 (#1378)

Closes #1376

Author: alxndrsn

package-lock.json

@@ -27,7 +27,7 @@
     "htmlparser2": "~3.9",
     "knex": "~0.21",
     "luxon": "~0.3",
-    "minio": "^7.1.3",
+    "minio": "^8.0.3",
     "morgan": "~1.9",
     "multer": "^1.4.5-lts.1",
     "mustache": "~2.3",