docker: udpate base alpine image to v3.19.7
- https://www.alpinelinux.org/posts/Alpine-3.18.10-3.19.5-3.20.4-released.html
- https://www.alpinelinux.org/posts/Alpine-3.18.11-3.19.6-3.20.5-3.21.2-released.html
- https://www.alpinelinux.org/posts/Alpine-3.18.12-3.19.7-3.20.6-3.21.3-released.html

Merge pull request #2123 from nodiscc/alpine-3.19.5

docker: update base alpine image to v3.19.7