Update feign monorepo to v12.1 (#1757)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

build.gradle

@@ -275,8 +275,8 @@ dependencies {
   implementation group: 'org.springframework.cloud', name: 'spring-cloud-starter-bootstrap', version: '3.1.5'
   // region: feign clients
   implementation group: 'org.springframework.cloud', name: 'spring-cloud-starter-openfeign', version: '3.1.5'
-  implementation group: 'io.github.openfeign', name: 'feign-httpclient', version: '12.0'
-  implementation group: 'io.github.openfeign', name: 'feign-jackson', version: '12.0'
+  implementation group: 'io.github.openfeign', name: 'feign-httpclient', version: '12.1'
+  implementation group: 'io.github.openfeign', name: 'feign-jackson', version: '12.1'
   // end region
 
   implementation group: 'org.springdoc', name: 'springdoc-openapi-ui', version: '1.6.12'