Update sdk to v1.8.1

Author: Alexander-Kita

go.mod

@@ -7,7 +7,7 @@ toolchain go1.22.5
 require (
 	github.com/IBM-Cloud/bluemix-go v0.0.0-20240719075425-078fcb3a55be
 	github.com/IBM-Cloud/container-services-go-sdk v0.0.0-20240725064144-454a2ae23113
-	github.com/IBM-Cloud/power-go-client v1.8.0-beta4
+	github.com/IBM-Cloud/power-go-client v1.8.1
 	github.com/IBM/apigateway-go-sdk v0.0.0-20210714141226-a5d5d49caaca
 	github.com/IBM/appconfiguration-go-admin-sdk v0.3.0
 	github.com/IBM/appid-management-go-sdk v0.0.0-20210908164609-dd0e0eaf732f

go.sum

@@ -118,8 +118,8 @@ github.com/IBM-Cloud/bluemix-go v0.0.0-20240719075425-078fcb3a55be/go.mod h1:/7h
 github.com/IBM-Cloud/container-services-go-sdk v0.0.0-20240725064144-454a2ae23113 h1:f2Erqfea1dKpaTFagTJM6W/wnD3JGq/Vn9URh8nuRwk=
 github.com/IBM-Cloud/container-services-go-sdk v0.0.0-20240725064144-454a2ae23113/go.mod h1:xUQL9SGAjoZFd4GNjrjjtEpjpkgU7RFXRyHesbKTjiY=
 github.com/IBM-Cloud/ibm-cloud-cli-sdk v0.5.3/go.mod h1:RiUvKuHKTBmBApDMUQzBL14pQUGKcx/IioKQPIcRQjs=
-github.com/IBM-Cloud/power-go-client v1.8.0-beta4 h1:mT3UaAo3RIJCsvjDZWQuqjr7CooDmB95VyI1ogKl4IY=
-github.com/IBM-Cloud/power-go-client v1.8.0-beta4/go.mod h1:oAkZiHX25cmr2Yun5V0q6CpnUemegvSrpcEy/oQcjzU=
+github.com/IBM-Cloud/power-go-client v1.8.1 h1:tx1aPJmIQrNru1MD1VHGNasGx3eRIs0zzPZ0KvdFQrg=
+github.com/IBM-Cloud/power-go-client v1.8.1/go.mod h1:N4RxrsMUvBQjSQ/qPk0iMZ8zK+fZPRTnHi/gTaASw0g=
 github.com/IBM-Cloud/softlayer-go v1.0.5-tf h1:koUAyF9b6X78lLLruGYPSOmrfY2YcGYKOj/Ug9nbKNw=
 github.com/IBM-Cloud/softlayer-go v1.0.5-tf/go.mod h1:6HepcfAXROz0Rf63krk5hPZyHT6qyx2MNvYyHof7ik4=
 github.com/IBM/apigateway-go-sdk v0.0.0-20210714141226-a5d5d49caaca h1:crniVcf+YcmgF03NmmfonXwSQ73oJF+IohFYBwknMxs=