Turn off kafka bridge default mem olp

[zmstone]

fixes: EMQX-8996

PR Checklist

Please convert it to a draft if any of the following conditions are not met. Reviewers may skip over until all the items are checked:

• [~] Added tests for the changes
• Changed lines covered in coverage report
• Change log has been added to changes/<version>/(feat|fix)-<PR-id>.en.md and .zh.md files
• For internal contributor: there is a jira ticket to track this change
• [~] If there should be document changes, a PR to emqx-docs.git is sent, or a jira ticket is created to follow up
• Schema changes are backward compatible

[coveralls]

Pull Request Test Coverage Report for Build 4242843677

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 26 unchanged lines in 10 files lost coverage.
• Overall coverage remained the same at 80.776%

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Files with Coverage Reduction	New Missed Lines	%
apps/emqx_dashboard/src/emqx_dashboard_monitor.erl	1	69.44%
apps/emqx/src/emqx_channel.erl	1	87.58%
apps/emqx/src/emqx_cm.erl	1	90.83%
apps/emqx/src/emqx_limiter/src/emqx_limiter_server.erl	1	89.08%
apps/emqx/src/emqx_router_helper.erl	1	86.27%
apps/emqx_connector/src/emqx_connector_jwt_worker.erl	2	92.54%
apps/emqx/src/emqx_config_handler.erl	2	96.21%
apps/emqx/src/emqx_quic_connection.erl	2	78.57%
apps/emqx_gateway/src/mqttsn/emqx_sn_frame.erl	3	63.48%
apps/emqx/src/emqx_reason_codes.erl	12	89.71%

Totals
Change from base Build 4241994879:	0.0%
Covered Lines:	23951
Relevant Lines:	29651

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💛 - Coveralls