chore(source-linkedin-ads): upgrade to cdk v7 (#67564)

## What
Addresses
https://github.com/airbytehq/airbyte-internal-issues/issues/14717

## How
Update the CDK version to pick
airbytehq/airbyte-python-cdk#783 up

## Review guide
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1. `x.py`
2. `y.py`
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## User Impact
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## Can this PR be safely reverted and rolled back?
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- [x] YES 💚
- [ ] NO ❌

Author: maxi297

airbyte-integrations/connectors/source-linkedin-ads/metadata.yaml

@@ -7,11 +7,11 @@ data:
       - linkedin.com
       - api.linkedin.com
   connectorBuildOptions:
-    baseImage: docker.io/airbyte/source-declarative-manifest:6.45.10@sha256:76b1aff1fe90c41dc7a4fa8902c5cbc1a5f3a659140af4a0fd610c1a215166aa
+    baseImage: docker.io/airbyte/source-declarative-manifest:7.3.2@sha256:0b877038dabe96789528febda5d7fc7cd1a1547ea92717f19aacde5752cfe572
   connectorSubtype: api
   connectorType: source
   definitionId: 137ece28-5434-455c-8f34-69dc3782f451
-  dockerImageTag: 5.5.2
+  dockerImageTag: 5.5.3
   dockerRepository: airbyte/source-linkedin-ads
   documentationUrl: https://docs.airbyte.com/integrations/sources/linkedin-ads
   githubIssueLabel: source-linkedin-ads

docs/integrations/sources/linkedin-ads.md

@@ -202,6 +202,7 @@ No workaround has been identified to manage this issue as of 2025, February.
 
 | Version    | Date       | Pull Request                                             | Subject                                                                                                                                                                |
 |:-----------|:-----------|:---------------------------------------------------------|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| 5.5.3 | 2025-10-09 | [67564](https://github.com/airbytehq/airbyte/pull/67564) | Upgrade to CDK v7. |
 | 5.5.2 | 2025-07-16 | [63336](https://github.com/airbytehq/airbyte/pull/63336) | Promoting release candidate 5.5.2-rc.1 to a main version. |
 | 5.5.2-rc.1 | 2025-06-23 | [60996](https://github.com/airbytehq/airbyte/pull/60996) | Fix to properly manage pagination for `Lead forms` and `Lead form responses` streams                                                                                   |
 | 5.5.1      | 2025-06-18 | [61639](https://github.com/airbytehq/airbyte/pull/61639) | Reduce default concurrency level to 3 and enable configurability via `num_workers` config property                                                                     |