chore(deps): update mysql helm release to v12.3.0

[homarr-renovate]

This PR contains the following updates:

Package	Update	Change
mysql (source)	minor	12.2.1 -> 12.3.0

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Release Notes

bitnami/charts (mysql)

v12.3.0

• [bitnami/mysql] Set usePasswordFiles=true by default (#​32113)

v12.2.4

• [bitnami/*] Fix typo in named template name (#​31858) (b739b69), closes #​31858
• [bitnami/*] Use CDN url for the Bitnami Application Icons (#​31881) (d9bb11a), closes #​31881
• [bitnami/mysql] Release 12.2.4 (#​32021) (8c5baf6), closes #​32021
• Update copyright year (#​31682) (e9f02f5), closes #​31682

v12.2.2

• [bitnami/mysql] Release 12.2.2 (#​31512) (289c6ca), closes #​31512

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