fix: GITHUB_ENV and GITHUB_OUTPUT allow larger lines

[ChristopherHX]

• Specify larger buffer

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Warnings	Elapsed time
✅ REPOSITORY	gitleaks	yes		no	no	2.43s
✅ REPOSITORY	git_diff	yes		no	no	0.01s
✅ REPOSITORY	grype	yes		no	no	21.68s
✅ REPOSITORY	secretlint	yes		no	no	1.2s
✅ REPOSITORY	syft	yes		no	no	1.46s
✅ REPOSITORY	trivy-sbom	yes		no	no	3.29s
✅ REPOSITORY	trufflehog	yes		no	no	3.86s

See detailed report in MegaLinter reports
Set VALIDATE_ALL_CODEBASE: true in mega-linter.yml to validate all sources, not only the diff

[codecov]

Codecov Report

Attention: Patch coverage is 80.00000% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
cmd/root.go	0.00%	1 Missing ⚠️

Files with missing lines	Coverage Δ
pkg/container/parse_env_file.go	64.00% <100.00%> (+0.73%)	⬆️
pkg/runner/run_context.go	80.59% <100.00%> (+0.16%)	⬆️
cmd/root.go	59.70% <0.00%> (+2.13%)	⬆️

... and 13 files with indirect coverage changes

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