fix: upgrade st from 0.2.4 to 0.5.5

Snyk has created this PR to upgrade st from 0.2.4 to 0.5.5.

See this package in npm:
st

See this project in Snyk:
https://app.snyk.io/org/frogthehun/project/66c53be5-ffb8-4b28-a8ea-88124479c446?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -42,7 +42,7 @@
     "mysql": "^2.18.1",
     "npmconf": "0.0.24",
     "optional": "^0.1.3",
-    "st": "0.2.4",
+    "st": "0.5.5",
     "stream-buffers": "^3.0.1",
     "tap": "^11.1.3",
     "typeorm": "^0.2.24",