support workdir field

Makefile

@@ -1,2 +1,3 @@
 dist/index.js: src/index.js
+	npm install
 	node_modules/.bin/ncc build $^ --target es2020

action.yml

@@ -17,6 +17,8 @@ inputs:
     description: The git ref to build. This will usually be a sha, but can be a branch or anything supported by git checkout.
   token:
     description: Pass `github.token` if this is a private repository.
+  workdir:
+    description: Use this if your module is not in the repo root. If you pass this, the `meta-path` will be relative to this workdir, not to repo root.
 
 runs:
   using: node20

dist/index.js

@@ -26971,6 +26971,9 @@ function parseBuildId(stdout) {
     if (getInput('token')) {
         startArgs.push('--token', getInput('token'));
     }
+    if (getInput('workdir')) {
+        startArgs.push('--workdir', getInput('workdir'));
+    }
     const spawnRet = spawnSync(cliPath, startArgs);
     checkSpawnSync(spawnRet);
     const buildId = parseBuildId(spawnRet.stdout);

src/index.js

@@ -125,6 +125,9 @@ function parseBuildId(stdout) {
     if (getInput('token')) {
         startArgs.push('--token', getInput('token'));
     }
+    if (getInput('workdir')) {
+        startArgs.push('--workdir', getInput('workdir'));
+    }
     const spawnRet = spawnSync(cliPath, startArgs);
     checkSpawnSync(spawnRet);
     const buildId = parseBuildId(spawnRet.stdout);