Pin to turbo v1 (#41)

* Pin to turbo v1

* check in build

Author: samstradling

README.md

@@ -1 +1,16 @@
 This is the package powering the GitHub action we use to determine which of our services have changed in each PR. We use that information to build only the changed packages rather than all services.
+
+## Troubleshooting
+
+If you get the following error when running `npm run package`:
+```
+Error: error:0308010C:digital envelope routines::unsupported
+```
+
+There is an issue here for this error: https://github.com/webpack/webpack/issues/14532
+
+A workaround is to set the following environment variable:
+
+```bash
+export NODE_OPTIONS=--openssl-legacy-provider
+```

dist/index.js

@@ -14,7 +14,7 @@ const run = async (): Promise<void> => {
     debug(`Inputs: ${JSON.stringify({prefix, from, to, workingDirectory})}`)
 
     const json = execSync(
-      `npx turbo run build ${
+      `npx turbo@1 run build ${
         from || to ? `--filter="[${from}...${to}]"` : ''
       } --dry-run=json`,
       {