fix: timeouts on doc:upload (#1227)

## 🧰 Changes

We've been running into issues with `doc:upload` calls processing 6
pages and then failing out with undici timeout errors despite no actual
request ever happening. I don't really know what's going on with the
`allSettled` or undici and why it's consistently failing but reworking
`doc:upload` to process each page in the batch one by one resolves our
issues (albeit at the expensive of making the command slower).

Author: erunion

src/lib/readmeAPIFetch.ts

@@ -325,6 +325,7 @@ export async function readmeAPIv2Fetch<T extends Hook.Context = Hook.Context>(
     })
     .catch(e => {
       this.debug(`error making fetch request: ${e}`);
+      this.debug(e.stack);
       throw e;
     });
 }

src/lib/syncPagePath.ts

@@ -290,7 +290,21 @@ export default async function syncPagePath(this: APIv2PageCommands) {
   const sortedFiles = sortFiles((unsortedFiles as PageMetadata<PageRepresentation>[]).sort(byParentPage));
 
   // push the files to ReadMe
-  const rawResults = await Promise.allSettled(sortedFiles.map(async fileData => pushPage.call(this, fileData)));
+  const rawResults: PromiseSettledResult<PushResult>[] = [];
+  for await (const fileData of sortedFiles) {
+    try {
+      const res = await pushPage.call(this, fileData);
+      rawResults.push({
+        status: 'fulfilled',
+        value: res,
+      });
+    } catch (err) {
+      rawResults.push({
+        status: 'rejected',
+        reason: err,
+      });
+    }
+  }
 
   const results = rawResults.reduce<{
     created: PushResult[];