KOP-2893 Add client and server keystore generation script

Closes #1 (closed) Generate new client and server certificates Generate new truststore

Läuft mit https://code.schleswig-holstein.de/ozg-cloud/eingang-api-test/-/merge_requests/1

added 1 commit

• 23a8eff6 - KOP-2850 POM: Support running spring-boot:build-image locally

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merged manually