fix(plugins): start/stop plugins when loading config from CLI

[thalesmg]

Fixes https://emqx.atlassian.net/browse/EMQX-10288

Summary

🤖 Generated by Copilot at 2740bb6

Added support for dynamic plugin configuration via CLI in emqx_plugins. Implemented a config handler and a test case for this feature. Bumped the version of emqx_plugins to 0.1.5.

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/(ce|ee)/(feat|perf|fix)-<PR-id>.en.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

Checklist for CI (.github/workflows) changes

• If changed package build workflow, pass this action (manual trigger)
• Change log has been added to changes/ dir for user-facing artifacts update

[coveralls]

Pull Request Test Coverage Report for Build 5488604133

• 11 of 13 (84.62%) changed or added relevant lines in 2 files are covered.
• 22 unchanged lines in 7 files lost coverage.
• Overall coverage increased (+0.02%) to 82.307%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
apps/emqx_plugins/src/emqx_plugins.erl	9	11	81.82%

Files with Coverage Reduction	New Missed Lines	%
apps/emqx_resource/src/emqx_resource_buffer_worker.erl	1	93.68%
apps/emqx/src/emqx_channel.erl	1	87.71%
apps/emqx/src/emqx_limiter/src/emqx_limiter_schema.erl	1	81.48%
apps/emqx/src/emqx_session.erl	1	87.65%
apps/emqx_gateway_mqttsn/src/emqx_mqttsn_frame.erl	2	64.04%
apps/emqx_oracle/src/emqx_oracle.erl	4	80.0%
apps/emqx/src/emqx_reason_codes.erl	12	88.97%

Totals
Change from base Build 5488419108:	0.02%
Covered Lines:	30945
Relevant Lines:	37597

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💛 - Coveralls