Synchronize ScyllaDB Manager version with config.yaml

[tnozicka]

Description of your changes:
This fixes version synchronization for ScyllaDB Manager deployment with the config.yaml.

(@rzetelskik found out this is not getting replaced)

[zimnx]

lgtm
/assign rzetelskik

[tnozicka]

well, we can't use the same sha for manager agent and manager images as those are different images (same version but not sha)
message: Back-off pulling image "docker.io/scylladb/scylla-manager-agent:3.3.0@sha256:e8c5b62c9330f91dfca24f109b033df78113d3ffaac306edf6d3c4346e1fa0bf"
@rzetelskik @zimnx can we get rid of the sha with a newer manager version?

[zimnx]

can we get rid of the sha with a newer manager version?

We can, although I think it would be better to have two configuration values with different sha's but the same semantic version for each image.

[tnozicka]

I've split the agent version, ptal

[rzetelskik]

/lgtm

[scylla-operator-bot]

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This pull-request has been approved by: rzetelskik, tnozicka, zimnx

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