Version filtering on API doesn't work for specific versions

[domdomegg]

Example:

• https://registry.modelcontextprotocol.io/v0/servers?search=io.github.domdomegg/airtable-mcp-server&version=latest works to return version 1.7.3
• https://registry.modelcontextprotocol.io/v0/servers?search=io.github.domdomegg/airtable-mcp-server&version=1.7.3 does not

[domdomegg]

Should probably wait for follow up of #527 as that might just fix it already