Issue Description:

The ConfigMapWrite used to populate a ConfigMap from an OLM bundle, translates filenames into ConfigMap keys by replacing forbidden characters. Specifically, it replaces invalid characters with tildes (~), which is also invalid in ConfigMap keys.

This results in an error like the following:

binaryData[scylladb~controller~aggregate-to-operator_rbac.authorization.k8s.io_v1_clusterrole.yaml]: Invalid value: "scylladb~controller~aggregate-to-operator_rbac.authorization.k8s.io_v1_clusterrole.yaml": a valid config key must consist of alphanumeric characters, '-', '_' or '.' (e.g. 'key.name',  or 'KEY_NAME',  or 'key-name', regex used for validation is '[-._a-zA-Z0-9]+')]

In this case, the file named scylladb:controller:aggregate-to-operator_rbac.authorization.k8s.io_v1_clusterrole.yaml was converted to scylladb~controller~aggregate-to-operator_rbac.authorization.k8s.io_v1_clusterrole.yaml, causing the validation to fail due to the use of ~.