[Transformations] Coverity fixes

[mryzhov]

Details:

• Added a null check for variadic_split in GLUFusion::GLUFusion() to prevent dereferencing a null pointer if the pattern match fails.
• Improved regex handling in make_unique_tensor_name by returning the original name if the regex does not match, preventing out-of-bounds access to regex match groups.
• Changed the type of data to const auto& in GLUFusion::GLUFusion() for consistency and to avoid unnecessary copies.
• Changed the type of resolve_node_name to const auto& in ResolveNameCollisions::run_on_model for consistency and to avoid unnecessary copies.

Tickets:

• CVS-192442
• CVS-192268

AI Assistance:

• AI assistance used: no / yes
• If yes, summarize how AI was used and what human validation was performed (build/tests/manual checks).

[Copilot]

Pull request overview

Adds Coverity-driven safety checks and avoids unnecessary copies in transformation passes.

Changes:

• Guards failed VariadicSplit casts in GLU fusion.
• Handles failed tensor-name regex matching.
• Uses references for matched data and name resolvers.

Risk: The regex fallback preserves a colliding name instead of making it unique; a regression test is also needed.

Reviewed changes

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

File	Description
resolve_names_collisions.cpp	Updates regex handling and resolver ownership.
glu_fusion.cpp	Adds null protection and avoids a matched-value copy.

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[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.

[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.