fix: typo in minio service entrypoint in docker-compose

[coutantal]

There's just a missing double quote in the minio entrypoint in the docker-compose preventing the run-peerdb.sh script to run.

Introduced in #3487.

decoding failed due to the following error(s):

error decoding 'services[minio].entrypoint': invalid command line string

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[heavycrystal]

thanks for the contribution!