[Sync] Update project files from source repository (5c903c5)

[mrz1836]

What Changed

• Updated MAGE_X_VERSION from v1.20.3 to v1.20.4 in .github/env/10-mage-x.env
• Updated MAGE_X_GOLANGCI_LINT_VERSION from v2.8.0 to v2.9.0
• Updated MAGE_X_STATICCHECK_VERSION from 2025.1.1 to 2026.1
• Updated MAGE_X_BENCHSTAT_VERSION from v0.0.0-20260112171951-5abaabe9f1bd to v0.0.0-20260211190930-8161c38c6cdc
• Updated GOVULNCHECK_GO_VERSION from 1.25.7 to 1.26.0 in .github/env/00-core.env
• Updated GO_COVERAGE_VERSION from v1.3.1 to v1.3.5 in .github/env/10-coverage.env
• Updated GO_PRE_COMMIT_VERSION from v0.0.0-20260126180531-ff36eaeb59e1 to v0.0.0-20260211190930-8161c38c6cdc in .github/env/10-pre-commit.env

Why It Was Necessary

• Keeping tooling dependencies up-to-date ensures access to latest bug fixes, security patches, and performance improvements
• Newer versions of linting and static analysis tools provide better code quality checks and reduce false positives
• Updating Go vulnerability scanner and coverage tools maintains security posture and testing reliability

Testing Performed

• Version updates are for development and CI tooling dependencies
• CI workflows will validate that updated tools execute successfully in their respective pipeline stages
• No application code changes are included, so functional testing is not required

Impact / Risk

• Breaking Change: None - these are tooling version updates only
• Risk: Low - version bumps are incremental and tools are used in isolated CI environments
• CI Impact: Minimal - updated tools should maintain backwards compatibility with existing configurations