workload: trim down crdb_internal.create_statements.txt test fixture

The `crdb_internal.create_statements.txt` fixture used in integration tests was originally a full TPCC extract (~14k lines). This commit replaces it with a minimal TSV containing only the rows needed to exercise:
  - filtering by `database_name`
  - skipping internal `job id=` entries
  - unquoting quoted SQL literals

This slimmed-down fixture makes the tests easier to understand, faster to run, and reduces noise in our test suite.

Fixes: CRDB-51752

Release note: None

Author: Pradyum-Git