installed db should be sorted

[xnox]

Apko produces unsorted installed db, and apk-tools rewrites it sorted upon any operation:

make local-wolfi
44bce94581e2:/work/packages# grep P: /usr/lib/apk/db/installed 
P:wolfi-baselayout
P:ca-certificates-bundle
P:glibc-locale-posix
P:libgcc
P:glibc
P:ld-linux
P:libcrypto3
P:libssl3
P:zlib
P:apk-tools
P:libxcrypt
P:libcrypt1
P:busybox
P:wolfi-keys
P:wolfi-base
44bce94581e2:/work/packages# apk add libbrotlicommon1
fetch https://packages.wolfi.dev/os/x86_64/APKINDEX.tar.gz
(1/1) Installing libbrotlicommon1 (1.2.0-r1)
OK: 15 MiB in 16 packages
44bce94581e2:/work/packages# grep P: /usr/lib/apk/db/installed 
P:apk-tools
P:busybox
P:ca-certificates-bundle
P:glibc
P:glibc-locale-posix
P:ld-linux
P:libbrotlicommon1
P:libcrypt1
P:libcrypto3
P:libgcc
P:libssl3
P:libxcrypt
P:wolfi-base
P:wolfi-baselayout
P:wolfi-keys
P:zlib
44bce94581e2:/work/packages# apk --version
apk-tools 2.14.10, compiled for x86_64.

[gangadhar-res]

I would like to take this one. Plan is to sort the entries when the installed DB is written and add a test that the output is stable. Will have a PR up shortly.