CI: change automatic merge rules for maintainers

[cplee]

ci: automatic merge PRs created by a maintainer and approved by 1 other maintainer

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ EDITORCONFIG	editorconfig-checker	1		0	0.01s
✅ REPOSITORY	gitleaks	yes		no	2.35s
✅ REPOSITORY	git_diff	yes		no	0.17s
✅ REPOSITORY	grype	yes		no	7.96s
✅ REPOSITORY	secretlint	yes		no	1.07s
✅ REPOSITORY	trivy-sbom	yes		no	0.61s
✅ REPOSITORY	trufflehog	yes		no	16.65s
✅ YAML	prettier	1		0	0.28s
✅ YAML	v8r	1		0	1.59s

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Set VALIDATE_ALL_CODEBASE: true in mega-linter.yml to validate all sources, not only the diff

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[codecov]

Codecov Report

Attention: 869 lines in your changes are missing coverage. Please review.

Comparison is base (4989f44) 61.22% compared to head (84425a8) 61.68%.
Report is 297 commits behind head on master.

Files	Patch %	Lines
pkg/artifactcache/handler.go	66.18%	100 Missing and 41 partials ⚠️
pkg/runner/run_context.go	73.37%	75 Missing and 19 partials ⚠️
pkg/runner/expression.go	55.17%	66 Missing and 12 partials ⚠️
pkg/runner/action_cache.go	50.74%	49 Missing and 17 partials ⚠️
pkg/container/docker_network.go	0.00%	56 Missing ⚠️
pkg/container/docker_run.go	2.00%	48 Missing and 1 partial ⚠️
pkg/model/workflow.go	43.37%	40 Missing and 7 partials ⚠️
pkg/common/outbound_ip.go	0.00%	44 Missing ⚠️
pkg/container/host_environment.go	0.00%	43 Missing ⚠️
pkg/artifactcache/storage.go	60.22%	24 Missing and 11 partials ⚠️
... and 25 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2156      +/-   ##
==========================================
+ Coverage   61.22%   61.68%   +0.45%     
==========================================
  Files          46       53       +7     
  Lines        7141     8808    +1667     
==========================================
+ Hits         4372     5433    +1061     
- Misses       2462     2946     +484     
- Partials      307      429     +122     

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[ChristopherHX]

Looks good to me