feat(source-gitlab): Increase default concurrency from 8 to 10 (4.4.23-rc.3) (#75537)

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

Author: sophiecuiy

airbyte-integrations/connectors/source-gitlab/manifest.yaml

@@ -946,7 +946,7 @@ definitions:
 
 concurrency_level:
   type: ConcurrencyLevel
-  default_concurrency: "{{ config.get('num_workers', 8) }}"
+  default_concurrency: "{{ config.get('num_workers', 10) }}"
   max_concurrency: 25
 
 streams:

airbyte-integrations/connectors/source-gitlab/metadata.yaml

@@ -10,7 +10,7 @@ data:
   connectorSubtype: api
   connectorType: source
   definitionId: 5e6175e5-68e1-4c17-bff9-56103bbb0d80
-  dockerImageTag: 4.4.23-rc.2
+  dockerImageTag: 4.4.23-rc.3
   dockerRepository: airbyte/source-gitlab
   documentationUrl: https://docs.airbyte.com/integrations/sources/gitlab
   externalDocumentationUrls:

docs/integrations/sources/gitlab.md

@@ -131,6 +131,7 @@ You can adjust the **Number of Concurrent Workers** setting to control how many
 
 | Version | Date       | Pull Request                                             | Subject                                                                                                                                                                            |
 | :------ | :--------- | :------------------------------------------------------- | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| 4.4.23-rc.3 | 2026-03-27 | [75537](https://github.com/airbytehq/airbyte/pull/75537) | Increase default concurrency from 8 to 10 for progressive rollout tuning |
 | 4.4.23-rc.2 | 2026-03-25 | [75480](https://github.com/airbytehq/airbyte/pull/75480) | Comment out HTTPAPIBudget to isolate concurrency tuning during progressive rollout |
 | 4.4.23-rc.1 | 2026-03-09 | [70858](https://github.com/airbytehq/airbyte/pull/70858) | Add HTTPAPIBudget and concurrency_level for improved sync performance |
 | 4.4.22 | 2026-02-24 | [73774](https://github.com/airbytehq/airbyte/pull/73774) | Update dependencies |