feat(elf-metadata): embed os, osVersion, and moduleVersion in .note.package

[anphel31]

Summary

Adds three structured fields — os, osVersion, and moduleVersion — to the
.note.package ELF section that the package-notes linker spec injects into
every dynamically-linked binary built with our LDFLAGS. These sit alongside the
existing osCpe and give SBOM and crash-analysis tooling a pre-parsed view of
the build's OS identity and package version without having to crack the CPE
string.

Example .note.package payload after this change (/usr/bin/tar):

{
    "type": "rpm",
    "name": "tar",
    "version": "1.35-7.azl4",
    "architecture": "x86_64",
    "osCpe": "cpe:2.3:o:microsoft:azure_linux:4.0:*:*:*:*:*:*:*",
    "os": "azure_linux",
    "osVersion": "4.0",
    "moduleVersion": "1.35.0.0"
}

Before this change:

{
    "type": "rpm",
    "name": "tar",
    "version": "1.35-7.azl4",
    "architecture": "x86_64",
    "osCpe": "cpe:/o:microsoft:azurelinux:4.0"
}

Note related PR #17685

[Copilot]

Pull request overview

This PR extends the package-notes linker spec JSON payload embedded in .note.package to include structured OS identity (os, osVersion) and a normalized moduleVersion, and wires rpmbuild macro hooks to ensure the needed environment is present across build phases.

Changes:

• Extend redhat-package-notes.in JSON payload with os, osVersion, and moduleVersion.
• Add an rpmbuild hook (%_generate_package_note_file) to export RPM_MODULE_VERSION, and ensure it runs during %install as well.
• Introduce a dedicated package-notes component definition with overlays + build-time self-tests; update locks and rendered specs accordingly.

Reviewed changes

Copilot reviewed 8 out of 10 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
specs/p/package-notes/redhat-package-notes.in	Adds the new JSON keys to the linker spec template.
specs/p/package-notes/package-notes.spec	Updates %build generation and adds self-test checks for the injected fields/hook.
specs/p/package-notes/macros.package-notes-srpm	Implements %_generate_package_note_file to export RPM_MODULE_VERSION.
specs/a/azurelinux-rpm-config/macros	Expands %{?_generate_package_note_file} in %__spec_install_pre to cover install-time relinks.
specs/a/azurelinux-rpm-config/azurelinux-rpm-config.spec	Adds a build-time guard to detect missing hook expansions in macros.
locks/package-notes.lock	Updates input fingerprint after component customization.
locks/azurelinux-rpm-config.lock	Updates input fingerprint after overlay changes.
base/comps/package-notes/package-notes.comp.toml	New dedicated component with overlays to inject fields and enforce self-tests.
base/comps/components.toml	Removes inline package-notes entry now that it has a dedicated comp file.
base/comps/azurelinux-rpm-config/azurelinux-rpm-config.comp.toml	Adds overlay to wire the hook into %__spec_install_pre and adds a guard in %install.

[ddstreetmicrosoft]

Er, no.

What problem is this attempting to fix?