Convert mocha tests to jest for all packages (#150)

Author: TooTallNate

.changeset/big-feet-beam.md

@@ -0,0 +1,15 @@
+---
+'data-uri-to-buffer': patch
+'https-proxy-agent': patch
+'socks-proxy-agent': patch
+'http-proxy-agent': patch
+'pac-proxy-agent': patch
+'pac-resolver': patch
+'degenerator': patch
+'proxy-agent': patch
+'agent-base': patch
+'get-uri': patch
+'proxy': patch
+---
+
+Convert mocha tests to jest for all packages

packages/agent-base/package.json

@@ -11,8 +11,7 @@
     "build": "tsc",
     "test": "jest --env node --verbose --bail",
     "lint": "eslint . --ext .ts",
-    "pack": "node ../../scripts/pack.mjs",
-    "prepublishOnly": "npm run build"
+    "pack": "node ../../scripts/pack.mjs"
   },
   "repository": {
     "type": "git",