Update Swagger UI to v5.21.0 (#51)

* fix(deps): update Swagger UI to v5.21.0

Signed-off-by: Justen Stall <39888103+justenstall@users.noreply.github.com>

* update version in v5cdn package and docs

Signed-off-by: Justen Stall <39888103+justenstall@users.noreply.github.com>

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Signed-off-by: Justen Stall <39888103+justenstall@users.noreply.github.com>

Add request proxy mode (#49)

Update Swagger UI to v5.17.14 (#46)

Handle relative swaggerJsonUrl's (#45)

Add internal basepath (#44)

Update Swagger UI to v5.10.3 (#43)

Fix handling of absolute schema URLs (#42)

Update Swagger UI to v5.7.1, fix v4 CDN (#40)

Fix CI job

Add more build targets, fix double response issue