feat: add --ruleset flag for custom Spectral rules

[armorbreak001]

Fixes #1900

Changes

• Added --ruleset / -r flag to the validate command in src/apps/cli/internal/flags/validate.flags.ts
• Added ruleset? to ValidationOptions interface in src/interfaces/index.ts
• Updated ValidationService.validateDocument() to use a custom ruleset parser when --ruleset is provided
• Added buildParserWithCustomRuleset() method that creates a Parser with the specified ruleset file path

Usage

asyncapi validate spec.yaml --ruleset ./my-custom-rules.yaml
asyncapi validate spec.yaml -r .spectral.json

Verification

1. Create a custom Spectral ruleset file (e.g., .spectral.yaml)
2. Run: asyncapi validate <spec-file> --ruleset <ruleset-file>
3. Verify validation uses the custom ruleset instead of defaults

[changeset-bot]

⚠️ No Changeset found

Latest commit: 350e58f

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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