Update Helm release mariadb to v18.2.5

This MR contains the following updates:

Package	Update	Change
mariadb (source)	patch	18.2.4 -> 18.2.5

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Release Notes

bitnami/charts (mariadb)

v18.2.5

• [bitnami/mariadb] Release 18.2.5 (#​27619)

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Configuration

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