fix: correct package.json exports and build configuration

Author: fabiovincenzi

package.json

@@ -29,6 +29,11 @@
       "import": "./src/types/models.js",
       "require": "./src/types/models.js",
       "types": "./src/types/models.d.ts"
+    },
+    "./plugin": {
+      "import": "./src/plugin.ts",
+      "require": "./src/plugin.ts",
+      "types": "./src/plugin.d.ts"
     }
   },
   "scripts": {

test/fixtures/test-package/default-export.js

@@ -1,4 +1,4 @@
-const { PushActionPlugin } = require('@finos/git-proxy/src/plugin');
+const { PushActionPlugin } = require('@finos/git-proxy/plugin');
 
 // test default export
 module.exports = new PushActionPlugin(async (req, action) => {

test/fixtures/test-package/multiple-export.js

@@ -1,4 +1,4 @@
-const { PushActionPlugin, PullActionPlugin } = require('@finos/git-proxy/src/plugin');
+const { PushActionPlugin, PullActionPlugin } = require('@finos/git-proxy/plugin');
 
 module.exports = {
   foo: new PushActionPlugin(async (req, action) => {

test/fixtures/test-package/subclass.js

@@ -1,4 +1,4 @@
-const { PushActionPlugin } = require('@finos/git-proxy/src/plugin');
+const { PushActionPlugin } = require('@finos/git-proxy/plugin');
 
 class DummyPlugin extends PushActionPlugin {
   constructor(exec) {