update OV runtime to master with 2026.2

[dtrawins]

🛠 Summary

JIRA/Issue if applicable.
Describe the changes.

🧪 Checklist

• Unit tests added.
• The documentation updated.
• Change follows security best practices.
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[Copilot]

Pull request overview

Updates OVMS build/packaging to align with OpenVINO / OpenVINO GenAI 2026.2 (tracking master / nightly artifacts), adjusting version strings, dependency pins, and expected runtime library SONAME/symlinks across Linux and Windows flows.

Changes:

• Bump OVMS/OpenVINO version references from 2026.1 → 2026.2 across Dockerfiles, Makefile, Windows scripts, and packaging metadata.
• Update build inputs to newer OpenVINO / tokenizers / GenAI commits and nightly binary package URLs.
• Update expected OpenVINO runtime library SONAME entries from 2610 → 2620 in Bazel and release file lists.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
windows_set_ovms_version.py	Bumps default OVMS project version used for Windows version stamping.
windows_install_build_dependencies.bat	Updates default Windows GenAI ZIP URL and source commit pins for OV/Tokenizers/GenAI.
third_party/llm_engine/llm_engine.bzl	Updates expected Linux shared library suffix to .so.2620.
tests/file_lists/lib_files_python.txt	Updates expected OpenVINO library symlinks/versioned filenames to 2026.2 / 2620.
tests/file_lists/lib_files.txt	Updates expected OpenVINO library symlinks/versioned filenames to 2026.2 / 2620.
demos/common/export_models/requirements.txt	Pins exporter dependencies to OpenVINO/OpenVINO-tokenizers nightly dev build for 2026.2.
create_package.sh	Updates Python dist-info metadata and GenAI symlink naming to 2026.2 / 2620.
Makefile	Updates OV/Tokenizers/GenAI commit pins, nightly DLDT URLs, and product version to 2026.2.0.
Dockerfile.ubuntu	Updates Python dist-info directories/metadata and PROJECT_VERSION default to 2026.2.0.
Dockerfile.redhat	Updates Python metadata version, PROJECT_VERSION default, and image labels to 2026.2.0.

[Copilot]

create_package.sh creates an extra libopenvino_genai symlink with the full version suffix (e.g. libopenvino_genai.so.2026.2.0.0) on RHEL (and potentially on Ubuntu). The release file list used by tests/file_lists/test_release_files.sh (lib_files_python.txt) doesn’t include this entry, so a release-image file list check would report a mismatch. Align the packaging symlinks with the expected file list (either add the missing symlink to the file list(s), or stop creating the full-version symlink and keep only the unversioned + SOVERSION links).

Suggested change

	if [[ "$BASE_OS" =~ "redhat" ]] && [ -f /ovms_release/lib/libopenvino_genai.so ]; then cd /ovms_release/lib/ ; rm -rf libopenvino_genai.so.* ; ln -s libopenvino_genai.so libopenvino_genai.so.2620 ; ln -s libopenvino_genai.so libopenvino_genai.so.2026.2.0.0 ; fi
	if [[ "$BASE_OS" =~ "redhat" ]] && [ -f /ovms_release/lib/libopenvino_genai.so ]; then cd /ovms_release/lib/ ; rm -rf libopenvino_genai.so.* ; ln -s libopenvino_genai.so libopenvino_genai.so.2620 ; fi

[Copilot]

lib_files_python.txt lists libopenvino_genai.so as a real file with libopenvino_genai.so.2620 pointing to it, but create_package.sh may also create (or leave) a full-version symlink (e.g. libopenvino_genai.so.2026.2.0.0) depending on distro/package contents. Since test_release_files.sh diffs exact ls -l output, the file list should include every expected symlink/target pair produced by packaging (or packaging should be adjusted to match this list).