build: update bci-base image from 15.4 to 15.5

As part of longhorn/longhorn#6206

Signed-off-by: nitendra-suse <nitendra.bhosle@suse.com>

Dockerfile.dapper

@@ -1,4 +1,4 @@
-FROM registry.suse.com/bci/bci-base:15.4
+FROM registry.suse.com/bci/bci-base:15.5
 
 ARG DAPPER_HOST_ARCH=amd64
 ARG http_proxy

package/Dockerfile

@@ -1,11 +1,11 @@
-FROM registry.suse.com/bci/bci-base:15.4 AS builder
+FROM registry.suse.com/bci/bci-base:15.5 AS builder
 
 ARG ARCH=amd64
 
 RUN zypper -n addrepo --refresh https://download.opensuse.org/repositories/system:/snappy/SLE_15/system:snappy.repo && \
-    zypper -n addrepo --refresh https://download.opensuse.org/repositories/network:/utilities/SLE_15_SP4/network:utilities.repo && \
-    zypper -n addrepo --refresh https://download.opensuse.org/repositories/devel:libraries:c_c++/15.4/devel:libraries:c_c++.repo && \
-    zypper -n addrepo --refresh https://download.opensuse.org/repositories/devel:languages:python:Factory/15.4/devel:languages:python:Factory.repo && \
+    zypper -n addrepo --refresh https://download.opensuse.org/repositories/network:/utilities/SLE_15_SP5/network:utilities.repo && \
+    zypper -n addrepo --refresh https://download.opensuse.org/repositories/devel:libraries:c_c++/15.5/devel:libraries:c_c++.repo && \
+    zypper -n addrepo --refresh https://download.opensuse.org/repositories/devel:languages:python:Factory/15.5/devel:languages:python:Factory.repo && \
     zypper -n addrepo --refresh https://download.opensuse.org/repositories/devel:languages:python:backports/SLE_15/devel:languages:python:backports.repo && \
     zypper --gpg-auto-import-keys ref