fix(container): update ghcr.io/cloudnative-pg/postgresql to v17.0-6

[lumiere-bot[bot]]

This PR contains the following updates:

Package	Update	Change
ghcr.io/cloudnative-pg/postgresql	patch	17.0-3 -> 17.0-6
ghcr.io/cloudnative-pg/postgresql	major	16.4-26 -> 17.0-6

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