Adding missing package double-conversion

[AZaugg]

Merge Checklist

All boxes should be checked before merging the PR (just tick any boxes which don't apply to this PR)

• The toolchain has been rebuilt successfully (or no changes were made to it)
• The toolchain/worker package manifests are up-to-date
• Any updated packages successfully build (or no packages were changed)
• Packages depending on static components modified in this PR (Golang, *-static subpackages, etc.) have had their Release tag incremented.
• Package tests (%check section) have been verified with RUN_CHECK=y for existing SPEC files, or added to new SPEC files
• All package sources are available
• cgmanifest files are up-to-date and sorted (./cgmanifest.json, ./toolkit/scripts/toolchain/cgmanifest.json, .github/workflows/cgmanifest.json)
• LICENSE-MAP files are up-to-date (./LICENSES-AND-NOTICES/SPECS/data/licenses.json, ./LICENSES-AND-NOTICES/SPECS/LICENSES-MAP.md, ./LICENSES-AND-NOTICES/SPECS/LICENSE-EXCEPTIONS.PHOTON)
• All source files have up-to-date hashes in the *.signatures.json files
• sudo make go-tidy-all and sudo make go-test-coverage pass
• Documentation has been updated to match any changes to the build system
• Ready to merge

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Summary

Package double-conversion is missing in azl3 but available in mariner2

Change Log

• Added a new package

Does this affect the toolchain?

YES/NO

Associated issues

• #xxxx

Links to CVEs

• https://nvd.nist.gov/vuln/detail/CVE-YYYY-XXXX

Test Methodology

• Pipeline build id: xxxx

[AZaugg]

Buddy build https://dev.azure.com/mariner-org/mariner/_build/results?buildId=814320&view=results

[Copilot]

Pull Request Overview

Add support for the missing double-conversion package across manifests, SPECs, signatures, and license mappings

• Introduce component metadata for double-conversion in cgmanifest.json
• Add a new RPM SPEC and signature file for version 3.1.5
• Update license data and mapping to include the new package

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
cgmanifest.json	Added a new “double-conversion” component entry
SPECS/double-conversion/double-conversion.spec	Created SPEC file for building version 3.1.5
SPECS/double-conversion/double-conversion.signatures.json	Added checksum signature for the source archive
LICENSES-AND-NOTICES/SPECS/data/licenses.json	Inserted “double-conversion” into the license list
LICENSES-AND-NOTICES/SPECS/LICENSES-MAP.md	Updated the Fedora license map row to include it

Comments suppressed due to low confidence (2)

LICENSES-AND-NOTICES/SPECS/data/licenses.json:190

• Replace tab characters with spaces to match the file's existing indentation style and maintain consistency.

\t\t"double-conversion",

LICENSES-AND-NOTICES/SPECS/LICENSES-MAP.md:8

• [nitpick] The Fedora row is extremely long—consider breaking the package list into multiple lines or grouping alphabetically to improve readability and future updates.

| Fedora | [Fedora MIT License Declaration](https://fedora...) | ... dotconf <br> double-conversion <br> dovecot ... |