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

[mrz1836]

What Changed

• Updated GO_PRE_COMMIT_GOLANGCI_LINT_VERSION from v2.8.0 to v2.9.0 in .github/env/10-pre-commit.env
• 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 MAGE_X_VERSION from v1.20.1 to v1.20.4 in .github/env/10-mage-x.env
• Added return $? statement to the get_script_dir() function in .github/env/load-env.sh

Why It Was Necessary

• Updating tool versions ensures access to latest bug fixes, security patches, and performance improvements
• The Go version update for govulncheck (1.26.0) provides the latest vulnerability detection capabilities
• Adding return $? to the shell function ensures proper exit code propagation for error handling

Testing Performed

• CI workflows should validate that all tool versions are correctly resolved and downloaded
• Pre-commit hooks will use the updated golangci-lint version to verify linting passes
• Shell script changes should be validated by existing workflow runs that load environment files

Impact / Risk

• Risk Level: Low - these are version bumps to stable releases and a minor shell script improvement
• Breaking Changes: None expected - all version updates are within compatible ranges
• CI Impact: Workflows will download newer tool versions on first run, which may add minimal build time

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[mrz1836]

LGTM!