Allow to tag PRE_COMMANDS to run them before loading plugins

[nvuillam]

Fixes #3936

[github-actions]

🦙 MegaLinter status: ⚠️ WARNING

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ API	spectral	1		0	1.14s
✅ BASH	bash-exec	5		0	0.02s
✅ BASH	shellcheck	5		0	0.13s
✅ BASH	shfmt	5	0	0	0.83s
✅ COPYPASTE	jscpd	yes		no	3.46s
✅ DOCKERFILE	hadolint	126		0	13.55s
✅ JSON	jsonlint	20		0	0.2s
✅ JSON	v8r	22		0	29.34s
⚠️ MARKDOWN	markdownlint	264	0	292	37.08s
✅ MARKDOWN	markdown-table-formatter	264	0	0	139.29s
⚠️ PYTHON	bandit	209		66	3.06s
✅ PYTHON	black	209	0	0	5.77s
✅ PYTHON	flake8	209		0	1.9s
✅ PYTHON	isort	209	0	0	1.75s
✅ PYTHON	mypy	209		0	18.77s
✅ PYTHON	pylint	209		0	25.77s
✅ PYTHON	ruff	209	0	0	1.09s
✅ REPOSITORY	checkov	yes		no	43.38s
✅ REPOSITORY	git_diff	yes		no	0.76s
⚠️ REPOSITORY	grype	yes		1	14.88s
✅ REPOSITORY	secretlint	yes		no	13.09s
✅ REPOSITORY	trivy	yes		no	24.31s
✅ REPOSITORY	trivy-sbom	yes		no	1.35s
⚠️ REPOSITORY	trufflehog	yes		1	12.48s
✅ SPELL	cspell	687		0	12.07s
⚠️ SPELL	lychee	346		9	25.26s
✅ XML	xmllint	3	0	0	0.82s
✅ YAML	prettier	160	0	0	5.71s
✅ YAML	v8r	102		0	177.91s
✅ YAML	yamllint	161		0	1.87s

See detailed report in MegaLinter reports

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