fix: add webhooks to stats and fix crash for webhooks tags

[RomanHotsiy]

What/Why/How?

stats command was crashing for GitHub API (tags was undefined).

Also added support for webhooks in stats.

Check yourself

• Code changed? - Tested with redoc/reference-docs/workflows (internal)
• All new/updated code is covered with tests
• New package installed? - Tested in different environments (browser/node)

Security

• Security impact of change has been considered
• Code follows company security practices and guidelines

[changeset-bot]

🦋 Changeset detected

Latest commit: f58a746

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@redocly/cli	Patch
@redocly/openapi-core	Patch

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Click here if you're a maintainer who wants to add another changeset to this PR

[github-actions]

Command	Mean [s]	Min [s]	Max [s]	Relative
redocly lint packages/core/src/benchmark/benches/rebilly.yaml	1.000 ± 0.018	0.974	1.032	1.00
redocly-next lint packages/core/src/benchmark/benches/rebilly.yaml	1.006 ± 0.022	0.972	1.035	1.01 ± 0.03

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟡	Statements	77.49%	4664/6019
🟡	Branches	65.94%	1938/2939
🟡	Functions	71.38%	763/1069
🟡	Lines	77.7%	4401/5664

Show files with reduced coverage 🔻

St.❔	File	Statements	Branches	Functions	Lines
🔴	... / stats.ts	10%	0%	0%	5.26%

Test suite run success

759 tests passing in 107 suites.

Report generated by 🧪jest coverage report action from f58a746

[tatomyr]

LGTM