voltha-go fails to build rw-core (release dependency)

Attempting to build/release voltha-go  from a local sandbox fails.

Following build instructions in the quickstart document:

• https://github.com/opencord/voltha-go/blob/master/quickstart.md

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docker build  -build-arg org_label_schema_version="3.1.6" build-arg org_label_schema_vcs_url="ssh://gerrit.opencord.org:29418/voltha-go.git" build-arg org_label_schema_vcs_ref="fd441170cd2c086630ad190e1612d7f22a1ac8f6" build-arg org_label_schema_build_date="2022-12-25T18:20:58Z" build-arg org_opencord_vcs_commit_date="2022-06-30T18:19:44+02:00" -build-arg org_opencord_vcs_dirty="true" -t voltha-rw-core:latest --target prod -f docker/Dockerfile.rw_core .
Sending build context to Docker daemon  59.29MB
Step 1/31 : FROM --platform=linux/amd64 golang:1.16.3-alpine3.13 AS dev
 ---> 270727b8fd0f
Step 2/31 : RUN apk add --no-cache build-base=0.5-r3
 ---> Running }}{{in 3471533f49d4
fetch https://dl-cdn.alpinelinux.org/alpine/v3.13/main/x86_64/APKINDEX.tar.gz
fetch https://dl-cdn.alpinelinux.org/alpine/v3.13/community/x86_64/APKINDEX.tar.gz
WARNING: Ignoring https://dl-cdn.alpinelinux.org/alpine/v3.13/main: temporary error (try again later)
ERROR: unable to }}{{select packages:
  build-base (no such package):
    required by: world[build-base=0.5-r3]
The }}{{command '/bin/sh -c apk add --no-cache build-base=0.5-r3' returned a non-zero code: 1
make: *** [Makefile:91: docker-build] Error 1