Fix C++ deprecated packages support and migrate track 1 packages from .NET CSV

[Copilot]

This PR addresses the issue of listing package deprecations for track 1 SDKs in C++ by fixing the infrastructure and migrating misclassified packages.

Changes Made

1. Fixed Template Bug

Fixed a critical bug in _includes/releases/cpp.md where the deprecated packages filter had conflicting logic:

{% elsif include.type == "deprecated" %}
  {% assign packages = site.data.releases.latest.cpp-packages | where: 'Support', 'deprecated' | where_exp: 'item', "item.Support <> 'deprecated'" %}

This was filtering FOR deprecated packages AND AGAINST deprecated packages simultaneously, resulting in no packages being displayed. Fixed to:

{% elsif include.type == "deprecated" %}
  {% assign packages = site.data.releases.latest.cpp-packages | where: 'Support', 'deprecated' %}

2. Added C++ to Deprecated Index

Added C++ section to the deprecated packages page (releases/deprecated/index.md) so that C++ deprecated packages will be displayed alongside other languages.

3. Migrated C++ Track 1 Packages

Found 3 C++ track 1 packages that were incorrectly classified in the .NET CSV file and moved them to the C++ CSV:

• Microsoft.Azure.Storage.CPP (deprecated 3/31/2023)
• Microsoft.Azure.Storage.CPP.v120 (deprecated 3/31/2023)
• Microsoft.Azure.Storage.CPP.v140 (deprecated 3/31/2023)

All packages include appropriate replacement guidance pointing to the modern azure-storage-blobs package and migration documentation.

4. Fixed Broken Package Links

• Updated Microsoft.Azure.Storage.CPP packages to point to actual NuGet URLs instead of non-existent GitHub archive links
• Ensured wastorage packages have "NA" RepoPath to avoid generating broken download links
• Verified all package download links now resolve correctly

Impact

• C++ deprecated packages will now appear on the deprecated packages page at https://azure.github.io/azure-sdk/releases/deprecated/index.html
• Infrastructure is ready for any future C++ package deprecations
• Users can find proper migration guidance for legacy C++ storage packages
• Packages are now correctly categorized by language
• Package download links now work correctly - no more broken links in the generated output

Verification

• ✅ 3 deprecated packages now properly listed in C++ CSV
• ✅ 0 C++ packages remaining in .NET CSV
• ✅ C++ template exists and is included in deprecated index
• ✅ Template has correct filtering logic for deprecated packages
• ✅ Package download links point to correct URLs (NuGet for Microsoft.Azure.Storage.CPP packages, no links for wastorage packages)

Fixes #6512.

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[Copilot]

Pull Request Overview

This PR fixes the deprecated package listing for C++, adds a C++ section to the deprecated index, and moves three C++ Track 1 packages from the .NET CSV into the C++ CSV.

• Corrects the Liquid filter logic in _includes/releases/cpp.md so deprecated C++ packages display properly
• Adds the C++ include to releases/deprecated/index.md
• Removes misclassified C++ packages from .NET CSV and adds them to cpp-packages.csv

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
releases/deprecated/index.md	Added releases/cpp.md include for deprecated C++
_includes/releases/cpp.md	Fixed conflicting filter logic for deprecated packages
_data/releases/latest/dotnet-packages.csv	Removed three C++ Track 1 packages
_data/releases/latest/cpp-packages.csv	Added the three migrated C++ Track 1 packages

Comments suppressed due to low confidence (1)

releases/deprecated/index.md:14

• Indent this include line to match the surrounding entries (e.g., two spaces before {% include ... %}) for consistent formatting.

{% include releases/cpp.md type="deprecated" %}

[RickWinter]

@copilot The generated output is referencing broken links. Fix the links.

[Copilot]

@copilot The generated output is referencing broken links. Fix the links.

Fixed the broken package download links. The Microsoft.Azure.Storage.CPP packages now point to their actual NuGet URLs instead of generating broken GitHub archive links. The wastorage packages already had "NA" RepoPath values to avoid broken links. All package links should now resolve correctly. Commit 6194798.

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