chore(deps): update python docker tag to v3.12.6

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
python	final	patch	3.12.5-alpine3.20 -> 3.12.6-alpine3.20
python	stage	patch	3.12.5-alpine3.20 -> 3.12.6-alpine3.20

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[github-actions]

🦙 MegaLinter status: ⚠️ WARNING

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✅ REPOSITORY	trivy-sbom	yes		no	1.4s
⚠️ REPOSITORY	trufflehog	yes		1	12.92s
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✅ YAML	v8r	102		0	186.84s
✅ YAML	yamllint	161		0	2.38s

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