chore(master): release 1.3.0

[github-actions]

🤖 I have created a release beep boop

1.3.0 (2026-06-18)

Features

• add ADDITIONAL_DOMAINS to authup container configuration (429a1c9)
• Added configurability of image tag for mysql, authup and nginx-proxy docker images via ENV variable (1199844)
• migrated to client auth (28c9c4f)

Bug Fixes

• Adapted polling-config to work out-of-the-box by forwarding to the built-in rev. proxy instead of the backend directly (because of URI-prefix-removal problem) (05dd705)
• Added ENV variable to allow activating query modules (206d9c0)
• Added HARICA Root 2021 to ca-chain.pem for remote host verification (90102de)
• Removed trailing whitespace in polling-config, which lead to errors in request handling in polling-module (f9d431f)
• updated CA cert used for mutualTLS within DIP network (#13) (cd4d5b9)

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