fix: ssl.keystore.type=pkcs12

[uurl]

Description

This PR fixes #6064 KSQLDB fails to start if ssl.keystore.type=pkcs12 instead of ssl.keystore.type=PKCS12

Testing done

mvn clean package

Reviewer checklist

• [ ] Ensure docs are updated if necessary. (eg. if a user visible feature is being added or changed).
• [ ] Ensure relevant issues are linked (description should include text like "Fixes #")

[ghost]

@confluentinc It looks like @uurl just signed our Contributor License Agreement. :+1:

Always at your service,

clabot

[uurl]

Ready Sergio @spena

[cla-assistant[bot]]

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