[4.x] Bump okio to 3.6

[yschimke]

No description provided.

[yschimke]

    Reason: Task ':okcurl:processResources' uses this output of task ':okcurl:copyResourcesTemplates' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed.
    
    Possible solutions:
      1. Declare task ':okcurl:copyResourcesTemplates' as an input of ':okcurl:processResources'.
      2. Declare an explicit dependency on ':okcurl:copyResourcesTemplates' from ':okcurl:processResources' using Task#dependsOn.
      3. Declare an explicit dependency on ':okcurl:copyResourcesTemplates' from ':okcurl:processResources' using Task#mustRunAfter.

[swankjesse]

LGTM