chore(teuto-cnpg/dependencies): pin ghcr.io/cloudnative-pg/postgresql docker tag to 6e0bdf6

[renovate]

This PR contains the following updates:

Package	Update	Change
ghcr.io/cloudnative-pg/postgresql	pinDigest	-> 6e0bdf6

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[teutonet-bot]

🤖 I have diffed this beep boop

"/$namespace/$kind/$name.yaml" for normal resources
"/$namespace/HelmRelease/$name/$namespace/$kind/$name.yaml" for HelmReleases <- this is recursive
'null' means it's either cluster-scoped or it's in the default namespace for the HelmRelease

charts/teuto-cnpg/ci/multiple-databases-values.yaml

charts/teuto-cnpg/ci/schedule-values.yaml

charts/teuto-cnpg/ci/multiple-databases-string-values.yaml

charts/teuto-cnpg/ci/multiple-database-roles-string-values.yaml

charts/teuto-cnpg/ci/multiple-database-roles-values.yaml

charts/teuto-cnpg/ci/backup-values.yaml

charts/teuto-cnpg/ci/artifacthub-values.yaml

[charts/teuto-cnpg/values.yaml]({"errors": ["Missing required field 'content'"]})

charts/teuto-cnpg/ci/credential-values.yaml