refactor: Update CI workflow to support runpod>= versioning

[deanq]

Changes:

• Update grep pattern from runpod~= to runpod>=
• Replace major.minor range logic with semantic version comparison
• Add validation for current_version extraction
• Update sed replacement to maintain >= operator
• Workflow now triggers on any version increase (patch, minor, major)

Previously, the workflow only updated for major.minor changes due to ~= (compatible release) constraint. Now with >=, all new releases are honored.

[Copilot]

Pull Request Overview

This PR updates the CI workflow to adopt semantic versioning with >= instead of compatible release constraints with ~=, enabling the workflow to trigger on all version updates (patch, minor, major) rather than just major.minor changes.

Key changes:

• Replace ~= (compatible release) with >= operator in requirements.txt and workflow
• Implement semantic version comparison using sort -V instead of major.minor string matching
• Add validation for current version extraction

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
builder/requirements.txt	Updates runpod dependency from ~=1.7.9 to >=1.8.0 to allow any version >= 1.8.0
.github/workflows/CI-runpod_dep.yml	Refactors version comparison logic to use semantic versioning and updates grep/sed patterns to handle >= operator

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