RenovateBot: Update dependency openapi-spec-validator to v0.7.2

This MR contains the following updates:

Package	Update	Change
openapi-spec-validator	patch	==0.7.1 -> ==0.7.2

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Release Notes

python-openapi/openapi-spec-validator (openapi-spec-validator)

v0.7.2

Compare Source

Fixes

• Allow undefined required properties #​312
• Extract extra options recursively #​391

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