Correct conformance class URLs

[webb-ben]

Overview

Per the conformance class in OGC API - Feaures: 5, use OGC API - Common conformance URL sets.

• .../ogcapi-features-5/1.0/conf/schemas -> .../ogcapi-common-3/1.0/conf/schemas
• .../ogcapi-features-5/1.0/conf/core-roles-features -> .../ogcapi-common-3/1.0/conf/advanced-property-roles

As introduced in #1967, pygeoapi uses the conformance class in the specification: http://www.opengis.net/spec/ogcapi-features-1/1.0/conf/oas30. However, the url that resolves is http://www.opengis.net/spec/ogcapi-features-1/1.0/conf/oas3.

I was able to find multiple references to the .../oas3 version of the the oas conformance class in the NamingAuthority repository: search:opengeospatial/NamingAuthority). I did not find any references in the naming authority to ogcapi-features-1/1.0/conf/oas30 or ogcapi-features-1/1.0/conf/oas30 Not sure if this is a fix that is first needed in the OAF spec.

Remaining specification URLs that do not resolve are in draft as described in #1637.

Related Issue / discussion

#1967
#1637
opengeospatial/ogcapi-features#1045

Additional information

Dependency policy (RFC2)

• I have ensured that this PR meets RFC2 requirements

Updates to public demo

• I have ensured that breaking changes to the pygeoapi master demo server have been addressed
  • https://github.com/geopython/demo.pygeoapi.io/blob/master/services/pygeoapi_master/local.config.yml

Contributions and licensing

(as per https://github.com/geopython/pygeoapi/blob/master/CONTRIBUTING.md#contributions-and-licensing)

• I'd like to contribute [feature X|bugfix Y|docs|something else] to pygeoapi. I confirm that my contributions to pygeoapi will be compatible with the pygeoapi license guidelines at the time of contribution
• I have already previously agreed to the pygeoapi Contributions and Licensing Guidelines