fix: Fix max_requests_per_crawl excluding failed requests (#1766)

### Description

- `BasicCrawler` should also consider failed requests when deciding if
`max_requests_per_crawl` was reached

### Issues

- Closes: #1765

### Testing

- Added unit test

### Checklist

- [ ] CI passed

Author: Pijukatel

src/crawlee/crawlers/_basic/_basic_crawler.py

@@ -566,7 +566,7 @@ def _stop_if_max_requests_count_exceeded(self) -> None:
         if self._max_requests_per_crawl is None:
             return
 
-        if self._statistics.state.requests_finished >= self._max_requests_per_crawl:
+        if self._statistics.state.requests_total >= self._max_requests_per_crawl:
             self.stop(
                 reason=f'The crawler has reached its limit of {self._max_requests_per_crawl} requests per crawl. '
             )

tests/unit/crawlers/_basic/test_basic_crawler.py

@@ -909,7 +909,10 @@ async def handler_three(context: BasicCrawlingContext) -> None:
     assert (await store.get_value(f'{BasicCrawler._CRAWLEE_STATE_KEY}_0')) == {'hello': 'last_world'}
 
 
-async def test_max_requests_per_crawl() -> None:
+@pytest.mark.parametrize(
+    'use_failed_requests', [pytest.param(True, id='failed requests'), pytest.param(False, id='finished requests')]
+)
+async def test_max_requests_per_crawl(*, use_failed_requests: bool) -> None:
     start_urls = [
         'http://test.io/1',
         'http://test.io/2',
@@ -927,14 +930,17 @@ async def test_max_requests_per_crawl() -> None:
 
     @crawler.router.default_handler
     async def handler(context: BasicCrawlingContext) -> None:
+        if use_failed_requests:
+            raise RuntimeError('Arbitrary crash for testing purposes')
         processed_urls.append(context.request.url)
 
     stats = await crawler.run(start_urls)
 
     # Verify that only 3 out of the 5 provided URLs were made
-    assert len(processed_urls) == 3
+    if not use_failed_requests:
+        assert len(processed_urls) == 3
+        assert stats.requests_finished == 3
     assert stats.requests_total == 3
-    assert stats.requests_finished == 3
 
 
 async def test_max_crawl_depth() -> None: