Add configuration annotation

Author: tomwatkins1994

src/main/kotlin/uk/gov/justice/digital/hmpps/hmppsintegrationapi/util/YamlPropertySourceFactory.kt

@@ -3,13 +3,15 @@
 package uk.gov.justice.digital.hmpps.hmppsintegrationapi.util
 
 import org.springframework.beans.factory.config.YamlPropertiesFactoryBean
+import org.springframework.context.annotation.Configuration
 import org.springframework.core.env.PropertiesPropertySource
 import org.springframework.core.env.PropertySource
 import org.springframework.core.io.support.EncodedResource
 import org.springframework.core.io.support.PropertySourceFactory
 import java.io.IOException
 import java.util.*
 
+@Configuration
 class YamlPropertySourceFactory : PropertySourceFactory {
   override fun createPropertySource(
     name: String?,