Readds the version log to the top of the logs

[0sewa0]

Description

The operator is missing the fist log line in all of our pods, which usually printed the commit hash, operator version and other infos.

How can this be tested?

Deploy, then check first line in the log to be something like:

{"level":"info","ts":"2022-08-03T12:24:32.051Z","logger":"dynatrace-operator-version","msg":"dynatrace-operator","version":"v0.7.2","gitCommit":"ed89e3e390eb12a49ca2d21de08b4c33ede49a09","buildDate":"2022-07-13T07:51:51+00:00","goVersion":"go
1.18.4","platform":"linux/amd64"} 

Checklist

• Unit tests have been updated/added
• PR is labeled accordingly
• I have read and understood the contribution guidelines