Fix BigQuery case-insensitive-cache

[pajaks]

Description

Right now case-insensitive-cache may contain only one value (in most cases) with projectId as key and names mapping as value. This causes cache to be build once and is never updated until it's invalidated. Also it's build with values available from one query only. It's not big problem for schema as for all queries we always supply cache from client.listDatasetIds(projectId).
For table it's buggy as some queries have limited information.
For example:

• select from single table will return only one list element with selected table from BigQuery, we will store only this table in cache mapping
• next select for another table will fetch mapping from cache and as new table is not present there it will return empty result
• empty result will cause table not found exception

This PR changes cache structure to be based on table/schema name as key. Also cache is updated on every query if key is not found.

Additional context and related issues

Change in test to remove .put("bigquery.service-cache-ttl", "0ms") is needed to get cache working. With this property set to 0. BigQueryClient is initialised for each query, which results in building cache from scratch for each query.

Release notes

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# BigQuery
* Fix BigQuery case-insensitive-cache ({issue}`23481`)

[ebyhr]

/test-with-secrets sha=0c40ca249b2b6874f0f0feaa9c7774a8ad6b03c4

[github-actions]

The CI workflow run with tests that require additional secrets finished as failure: https://github.com/trinodb/trino/actions/runs/10920739075

[ebyhr]

/test-with-secrets sha=ff782a76f6a13e7516f68ed0ec044207d73b53c6

[github-actions]

The CI workflow run with tests that require additional secrets finished as failure: https://github.com/trinodb/trino/actions/runs/10957801373