feat: remove x-expect from spot

[DmitryAnansky]

What/Why/How?

Remove x-expect from Spot.

Reference

Testing

Screenshots (optional)

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: d88da77

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

This PR includes changesets to release 2 packages

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

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[github-actions]

Command	Mean [s]	Min [s]	Max [s]	Relative
redocly lint packages/core/src/benchmark/benches/rebilly.yaml	1.016 ± 0.057	0.978	1.168	1.03 ± 0.06
redocly-next lint packages/core/src/benchmark/benches/rebilly.yaml	0.984 ± 0.012	0.966	1.007	1.00

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟡	Statements	78.82%	5028/6379
🟡	Branches	67.19%	2050/3051
🟡	Functions	73.35%	831/1133
🟡	Lines	79.11%	4742/5994

Test suite run success

814 tests passing in 121 suites.

Report generated by 🧪jest coverage report action from d88da77