Update harness to simplify 25.9.0 compatibility

[charlesbluca]

• Temporarily disable arm64 builds (Temporarily disable arm64 builds #1323)
• Document MIG slice configuration for NIM models per chat message (Document MIG slice configuration for NIM models per chat message #1324)
• Fallback to image only embeddings if text is empty (Fallback to image only embeddings if text is empty #1321)
• MIGslice update (MIGslice update #1329)
• Update release notes for nv-ingest for page elements topic (Update release notes for nv-ingest for page elements topic #1333)
• Sohail/update version refs (Sohail/update version refs #1331)
• Lancedb Retrieval Rework, harness compatibility, example notebook (Lancedb Retrieval Rework, harness compatibility, example notebook  #1307)
• feat(harness): Add Helm deployment support to test harness (feat(harness): Add Helm deployment support to test harness #1306)
• Switch Compose dynamic scaling default to disabled (Switch Compose dynamic scaling default to disabled #1341)
• feat(harness): Service log dumping, support for compose override files (feat(harness): Service log dumping, support for compose override files #1340)
• Deduplicate images that overlap with tables using bounding boxes (Deduplicate images that overlap with tables using bounding boxes #1344)
• Add pre-commit hook to validate Compose/Helm configs (Add pre-commit hook to validate Compose/Helm configs #1345)
• refactor: Complete GitHub Actions overhaul with unified release process (refactor: Complete GitHub Actions overhaul with unified release process #1268)
• Add github action to build Nvidia nemotron huggingface models nightly (Add github action to build Nvidia nemotron huggingface models nightly #1349)
• Nightly hf build script (Nightly hf build script #1350)
• Build Nemotron OCR with specific Nvidia GPU ARCH support (Build Nemotron OCR with specific Nvidia GPU ARCH support #1351)
• Workflow location update (Workflow location update #1352)
• Workflow tweaks (Workflow tweaks #1353)
• Further workflow tweaks to address syntax issues (Further workflow tweaks to address syntax issues #1354)
• Sanitize build refs for docker build names (Sanitize build refs for docker build names #1355)
• Attempt to resolve workflows for docs build, conda publishing, and di… (Attempt to resolve workflows for docs build, conda publishing, and di… #1356)
• Disable arm64 commit builds (Disable arm64 commit builds #1358)
• docker-compose-update (docker-compose-update #1339)
• changes references to blueprint (changes references to blueprint #1357)
• Cancel any in progress actions after a new commit to an existing PR (Cancel any in progress actions after a new commit to an existing PR #1359)
• Refactor docker build and test into a single job to prevent artifacts… (Refactor docker build and test into a single job to prevent artifacts… #1363)
• Add LanceDB hybrid search support and update harness defaults (Add LanceDB hybrid search support and update harness defaults #1346)
• added documentation resources section to NV-Ingest GitHub home page (added documentation resources section to NV-Ingest GitHub home page #1365)
• Backward compatibility modifications for 25.9.0

Description

Checklist

• I am familiar with the Contributing Guidelines.
• New or existing tests cover these changes.
• The documentation is up to date with these changes.
• If adjusting docker-compose.yaml environment variables have you ensured those are mimicked in the Helm values.yaml file.