perf: optimize GitLab client HTTP engine configuration

Author: filipowm

ambassador-gitlab-client/src/main/kotlin/com/roche/gitlab/api/GitLabApiBuilder.kt

@@ -213,6 +213,12 @@ class GitLabApiBuilder internal constructor() {
             return HttpClient(CIO) {
                 engine {
                     this.threadsCount = clientThreadsCount
+                    this.maxConnectionsCount = 1500
+                    endpoint {
+                        keepAliveTime = 10000
+                        maxConnectionsPerRoute = 200
+                        pipelineMaxSize = 25
+                    }
                 }
                 defaultRequest {
                     this.url.takeFrom(

ambassador-storage/src/main/kotlin/com/roche/ambassador/storage/project/ProjectEntityRepository.kt

@@ -15,7 +15,7 @@ interface ProjectEntityRepository : PagingAndSortingRepository<ProjectEntity, Lo
 
     @QueryHints(value = [
         QueryHint(name = HINT_CACHEABLE, value = "false"),
-        QueryHint(name = HINT_FETCH_SIZE, value = "" + Integer.MIN_VALUE),
+        QueryHint(name = HINT_FETCH_SIZE, value = "50"),
     ])
     @Query("SELECT p FROM ProjectEntity p WHERE p.subscribed = true")
     fun streamAllForAnalysis(): Stream<ProjectEntity>