[SPARK-48233][SQL][STREAMING] Tests for non-stateful streaming on columns with collations

[dbatomic]

What changes were proposed in this pull request?

This change covers tests for streaming operations under columns of string type that are collated with non-utf8-binary collations.

Why are the changes needed?

You can find more information about collation effort in document attached to root jira ticket.

This PR adds tests for basic non-stateful streaming operations with collations (e.g. filtering).

Does this PR introduce any user-facing change?

No

How was this patch tested?

PR is test only.

Was this patch authored or co-authored using generative AI tooling?

No