Release/803.0.0

[lwin-kyaw]

Explanation

Major release of @metamask/subscription-controller to v6.0.0.

References

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them

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Note

Medium Risk
Release/versioning-only diff, but it publishes a breaking API change in @metamask/subscription-controller that will require consumer updates.

Overview
Bumps the monorepo version to 803.0.0 and releases @metamask/subscription-controller 6.0.0.

Updates the subscription-controller changelog for the 6.0.0 release, including a breaking SubscriptionService constructor signature change (adds captureException and fetchFunction) and notes improved Sentry error reporting plus dependency bumps.

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