config: allow scriplets in subpackages with range replacements

[xnox]

This allows to create subpackages with dynamic scriplets, which take range key/value subsitutions just like other subapckage values.

Example fun usage shown in xnox/os@3a96413

    scriptlets:
      post-install: |
        #!/usr/bin/python${{range.key}}
        import glob, shutil
        for b in glob.glob("/usr/pybin/${{range.key}}/*"): shutil.copy2(b, "/usr/bin/")

bb6225aab2ee:/# head -n1 /usr/bin/pip
#!/usr/bin/python3.10

bb6225aab2ee:/# apk add py3.11-pip
(1/4) Installing python-3.11-base (3.11.9-r0)
(2/4) Installing py3.11-flit-core (3.9.0-r2)
(3/4) Installing py3.11-setuptools (69.5.1-r1)
(4/4) Installing py3.11-pip (24.0-r2)
Executing py3.11-pip-24.0-r2.post-install
OK: 140 MiB in 35 packages

bb6225aab2ee:/# head -n1 /usr/bin/pip
#!/usr/bin/python3.11

bb6225aab2ee:/# apk add py3.12-pip
(1/4) Installing python-3.12-base (3.12.3-r0)
(2/4) Installing py3.12-flit-core (3.9.0-r2)
(3/4) Installing py3.12-setuptools (69.5.1-r1)
(4/4) Installing py3.12-pip (24.0-r2)
Executing py3.12-pip-24.0-r2.post-install
OK: 199 MiB in 39 packages

bb6225aab2ee:/# head -n1 /usr/bin/pip
#!/usr/bin/python3.12

This is mostly for completness sake to be able to support full package schema, in the subpackages-range cases.

Melange Pull Request Template

Functional Changes

• This change can build all of Wolfi without errors (describe results in notes)

Notes:

SCA Changes

• Examining several representative APKs show no regression / the desired effect (details in notes)

Notes:

Linter

• The new check is clean across Wolfi
• The new check is opt-in or a warning

Notes: