## Description
Updating fixtures to replace executeOnLoad with reactiveActions
Fixes [#39833](https://github.com/appsmithorg/appsmith/issues/39833)
## Automation
/ok-to-test tags=""
### 🔍 Cypress test results
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## Communication
Should the DevRel and Marketing teams inform users about this change?
- [ ] Yes
- [ ] No
## Description
- This PR improves the container start for
- Arango DB - Container started moved to test case level
- MsSql - Delete container added
- Elastic - Container started moved to test case level
- Starts container, runs tests, stops containers & deletes it too 🤞🏻
- Removed containers start from yml file
- Flaky fixes below:
- Apps/ReconnectDatasource_spec.js
- Improved FillPostgresDSForm()
#### Type of change
- Script fix (non-breaking change which fixes an issue)
## Testing
#### How Has This Been Tested?
- [X] Cypress CI runs
## Checklist:
#### QA activity:
- [X] Added `Test Plan Approved` label after all changes are reviewed
