fix: upgrade semver from 7.3.2 to 7.6.3

Snyk has created this PR to upgrade semver from 7.3.2 to 7.6.3.

See this package in npm:
semver

See this project in Snyk:
https://app.snyk.io/org/doperiddle/project/09cea5ed-d730-4815-9858-2b92e1f152c3?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -49,7 +49,7 @@
     "knex-stringcase": "^1.4.5",
     "pg": "8.2.1",
     "prom-client": "^12.0.0",
-    "semver": "^7.3.2",
+    "semver": "^7.6.3",
     "typescript": "^3.9.5"
   },
   "devDependencies": {