RDKEMW-17673 : Add info coverage gate to CI

[swethasukumarr]

No description provided.

[rdkcmf-jenkins]

b'## Blackduck scan failure details

Summary: 0 violations, 0 files pending approval, 1 file pending identification.

• Protex Server Path: /home/blackduck/github/firebolt-cpp-client/81/rdkcentral/firebolt-native-transport

• Commit: 7dad05a

Report detail: gist'

[Copilot]

Pull request overview

Adds an informational coverage “gate” to the CI workflow by producing/archiving LCOV artifacts from unit + component test runs, comparing them against a stored baseline on a build-metadata branch, and (on develop pushes) updating that baseline automatically.

Changes:

• Generate and upload LCOV (filtered_coverage.info) artifacts for unit and component test jobs.
• Add coverage_gate job to fetch the baseline and report threshold/regression status (non-blocking).
• Add update_baseline job (push to develop only) plus a new Python script + tests to compute and persist baseline coverage.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 5 comments.

File	Description
.github/workflows/ci.yml	Adds LCOV generation/artifacts, plus new coverage_gate and update_baseline jobs.
.github/scripts/compare_coverage.py	New script to parse LCOV, compare vs baseline, print report, and optionally emit baseline JSON.
.github/scripts/compare_coverage_test.py	New unittest suite covering parsing/analysis and end-to-end report scenarios.

[mhughesacn]

Hi @swethasukumarr : If the two python files are from RDK, not Comcast, then please add this to the end of NOTICE at top level:

Copyright 2026 RDK Management
Licensed under the Apache License, Version 2.0

or they should have Comcast Apache headers. Thank you.