feat: add proxy support (#102)

Adds support for the following environment variables:

- `https_proxy`
- `HTTPS_PROXY`
- `http_proxy`
- `HTTP_PROXY`
- `no_proxy`
- `NO_PROXY`

package-lock.json

@@ -12,7 +12,8 @@
         "@actions/core": "^1.10.1",
         "@octokit/auth-app": "^6.0.3",
         "@octokit/request": "^8.1.6",
-        "p-retry": "^6.2.0"
+        "p-retry": "^6.2.0",
+        "undici": "^6.6.0"
       },
       "devDependencies": {
         "@sinonjs/fake-timers": "^11.2.2",
@@ -22,7 +23,6 @@
         "esbuild": "^0.20.0",
         "execa": "^8.0.1",
         "open-cli": "^8.0.0",
-        "undici": "^6.6.0",
         "yaml": "^2.3.4"
       }
     },
@@ -421,7 +421,6 @@
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/@fastify/busboy/-/busboy-2.0.0.tgz",
       "integrity": "sha512-JUFJad5lv7jxj926GPgymrWQxxjPYuJNiNjNMzqT+HiuP6Vl3dk5xzG+8sTX96np0ZAluvaMzPsjhHZ5rNuNQQ==",
-      "dev": true,
       "engines": {
         "node": ">=14"
       }
@@ -3522,7 +3521,6 @@
       "version": "6.6.0",
       "resolved": "https://registry.npmjs.org/undici/-/undici-6.6.0.tgz",
       "integrity": "sha512-p8VvLAgnx6g9pydV0GG/kciSx3ZCq5PLeEU4yefjoZCc1HSeiMxbrFzYIZlgSMrX3l0CoTJ37C6edu13acE40A==",
-      "dev": true,
       "dependencies": {
         "@fastify/busboy": "^2.0.0"
       },