Npm audit fix (braces, fast-loops, ws) (#9)

Fix 3 high severity vulnerabilities:

* braces  <3.0.3
Severity: high
Uncontrolled resource consumption in braces -
GHSA-grv7-fg5c-xmjg

* fast-loops  <1.1.4
Severity: high
robinweser fast-loops vulnerable to prototype pollution -
GHSA-3q56-9cc2-46j4

* ws  8.0.0 - 8.17.0
Severity: high
ws affected by a DoS when handling a request with many HTTP headers -
GHSA-3h5v-q93c-6h6q