Update some npm dependencies to secure versions, #801

All these updates should be backwards-compatible.

• postcss: 7.0.35 -> 7.0.3
  • Fixing CVE-2021-23368 and CVE-2021-23382
• axios: 0.21.1 -> 0.21.4
  • Fixing CVE-2021-3749
• color-string: 1.5.4 -> 1.9.0
  • Fixing CVE-2021-29060
• dns-packet: 1.3.1 -> 1.3.4
  • Fixing CVE-2021-23386
• ansi-regex: 5.0.0 -> 5.0.1
  • Fixing CVE-2021-3807
• follow-redirects: 1.13.0 -> 1.14.9
  • Fixing CVE-2022-0155 and CVE-2022-0536
• json-schema: 0.2.3 -> 0.4.0
  • Fixing CVE-2021-3918
• jszip: 3.6.0 -> 3.7.1
  • Fixing CVE-2021-23413
• nanoid: 3.1.23 -> 3.3.1
  • Fixing CVE-2021-23566
• nth-check: 2.0.0 -> 2.0.1
  • Fixing CVE-2021-3803
• path-parse: 1.0.6 -> 1.0.7
  • Fixing CVE-2021-23343
• ssri: 8.0.0 -> 8.0.1
  • Fixing CVE-2021-27290
• tar: 6.0.5 -> 6.1.11
  • Fixing CVE-2021-32803, CVE-2021-32804, CVE-2021-37701 and CVE-2021-37712
• url-parse: 1.4.7 -> 1.5.10
  • Fixing CVE-2021-3664, CVE-2021-27515, CVE-2022-0512, CVE-2022-0639, CVE-2022-0686 and CVE-2022-0691
• ws: 6.0.0 -> 6.2.1
  • Fixing CVE-2021-32640
• y18n: 4.0.0 -> 4.0.3
  • Fixing CVE-2020-7774