[jaeger] Unset default collector OTLP ports

[sam-mcbr]

What this PR does

This sets the default values of the collector.service.otlp.grpc and collector.service.otlp.http to {} and also fixes a bug with the deploy logic that would prevent overriding these values with null. At the very least, the deploy change is needed because the values cannot be overridden with null and helm does not allow overriding them with {} (see https://github.com/helm/helm/issues/5407).

Checklist

• [x] DCO signed
• [x] Commits are GPG signed
• [x] Chart Version bumped
• [x] Title of the PR starts with chart name ([jaeger] or [jaeger-operator])
• [x] README.md has been updated to match version/contain new values