Unable to generate yaml format for a group

[jeff-lauterbach-by]

I have multiple openapi specs in a single project and am using the GroupedOpenApi capability of springdoc.

I am trying to generate the openapi spec in yaml for a specific group through the gradle plugin by specifying the appropriate apiDocsUrl property.

I'm getting an error

A JSONObject text must begin with '{' at 1 [character 2 line 1]

I dug into the code and it is only looking at the end of the apiDocsUrl property to determine if it is yaml or not. When using the Group capability, the yaml url format is like the following
http://server:port/context-path/v3/api-docs.yaml/{groupName}

The code should probably change to do a contains check instead of an endsWith.

[jeff-lauterbach-by]

Created pull request
#38

[YunaBraska]

@jeff-lauterbach-by I also have multiple GroupedOpenApis but how did you solve to generate more than one group? BTW I am not a Gradle expert :(

[bnasslahsen]

Merge done for the PR #38