[Security] Bump https-proxy-agent from 2.2.1 to 2.2.4

Bumps [https-proxy-agent](https://github.com/TooTallNate/node-https-proxy-agent) from 2.2.1 to 2.2.4. **This update includes security fixes.**
- [Release notes](https://github.com/TooTallNate/node-https-proxy-agent/releases)
- [Commits](TooTallNate/proxy-agents@2.2.1...2.2.4)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

yarn.lock

@@ -373,7 +373,7 @@ acorn@^7.1.0:
  version "7.1.0"
  resolved "https://registry.yarnpkg.com/acorn/-/acorn-7.1.0.tgz#949d36f2c292535da602283586c2477c57eb2d6c"
 
-agent-base@^4.1.0:
+agent-base@^4.3.0:
  version "4.3.0"
  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.3.0.tgz#8165f01c436009bccad0b1d122f05ed770efc6ee"
  dependencies:
@@ -1604,10 +1604,10 @@ http-signature@~1.2.0:
  sshpk "^1.7.0"
 
 https-proxy-agent@^2.2.1:
- version "2.2.1"
- resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.2.1.tgz#51552970fa04d723e04c56d04178c3f92592bbc0"
+ version "2.2.4"
+ resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.2.4.tgz#4ee7a737abd92678a293d9b34a1af4d0d08c787b"
  dependencies:
- agent-base "^4.1.0"
+ agent-base "^4.3.0"
  debug "^3.1.0"
 
 iconv-lite@0.4.13: