Bump Alpine Linux Version to 3.18.3

[github-actions]

Bump Alpine version

Update the value of the base image (ARG ALPINE_TAG) in the Dockerfile

changed lines [23] of file "/tmp/updatecli/github/jenkinsci/docker-agent/alpine/Dockerfile"

3.18.3

no GitHub Release found for v3.18.3 on "https://github.com/alpinelinux/aports"

Update the value of the base image (ARG ALPINE_TAG) in the docker-bake.hcl

Updated to content "" in file "docker-bake.hcl"

3.18.3

no GitHub Release found for v3.18.3 on "https://github.com/alpinelinux/aports"

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