Fix the vulnerability issues in the job service code

'Errors unhandled' in 'jobservice/job/impl/logger/job_logger.go'
'TLS InsecureSkipVerify set true' in 'jobservice/opm/hook_client.go'

src/jobservice/job/impl/logger/job_logger.go

@@ -34,7 +34,7 @@ func New(logPath string, level string) *JobLogger {
 //Implements logger.Closer interface
 func (jl *JobLogger) Close() error {
 	if jl.streamRef != nil {
-		jl.streamRef.Close()
+		return jl.streamRef.Close()
 	}
 
 	return nil

src/jobservice/opm/hook_client.go

@@ -3,7 +3,6 @@
 package opm
 
 import (
-	"crypto/tls"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -38,9 +37,6 @@ func NewHookClient() *HookClient {
 		Transport: &http.Transport{
 			MaxIdleConns:    maxIdleConnections,
 			IdleConnTimeout: idleConnectionTimeout,
-			TLSClientConfig: &tls.Config{
-				InsecureSkipVerify: true,
-			},
 		},
 	}