update cargo.toml

[maggie98choy]

What

What does this PR add or remove?

Why

Why are these changes needed?

How

How do these changes achieve the goal?

Test

How has this been tested? How can a reviewer test it?

Checklist

• I have self-reviewed this PR
• I have added tests that prove the feature works or the fix is effective

[github-actions]

Package	Line Rate	Health
core.main.src.utils	26%	❌
core.main.src.firebolt	3%	❌
core.main.src.broker	55%	➖
core.launcher.src	0%	❌
core.main.src.bootstrap.manifest	0%	❌
core.sdk.src.extn.client	88%	✔
device.mock_device.src	54%	➖
core.main.src.processor.storage	0%	❌
core.sdk.src.extn	80%	✔
core.sdk.src.api	74%	➖
core.sdk.src.api.distributor	84%	✔
core.sdk.src.api.firebolt	77%	✔
core.sdk.src.framework	76%	✔
core.main.src.state	22%	❌
core.tdk.src.utils	0%	❌
core.main.src.service.apps	48%	➖
distributor.general.src	2%	❌
core.launcher.src.manager	7%	❌
core.main.src.bootstrap	0%	❌
core.main.src.bootstrap.extn	0%	❌
core.main.src.service	31%	❌
core.main.src.broker.test	93%	✔
core.sdk.src.api.gateway	65%	➖
core.main.src.processor	0%	❌
core.sdk.src.utils	49%	➖
core.sdk.src.processor	0%	❌
core.sdk.src.api.observability	58%	➖
core.main.src	0%	❌
core.main.src.broker.thunder	39%	❌
core.main.src.state.cap	43%	❌
core.main.src.service.extn	40%	❌
core.sdk.src.api.manifest	89%	✔
openrpc_validator.src	68%	➖
core.sdk.src.api.device	77%	✔
core.tdk.src.gateway	100%	✔
core.main.src.firebolt.handlers	9%	❌
core.sdk.src.extn.ffi	80%	✔
Summary	46% (17899 / 38784)	➖

Minimum allowed line rate is 43%

Current coverage:46% exceeds coverage threshold. Coverage threshold will be updated automatically to reflect to the latest coverage when this pr is merged to main branch.