SERVER-126384 added the test jstests/fle2/implicit_ecoc_creation.js and registered it in the last-continuous and last-lts sections of etc/backports_required_for_multiversion_tests.yml.

Concurrently, SERVER-127663 introduced the last-patch section in the same file.

Because these two tickets landed independently, the last-patch section is missing the exclusion entry for jstests/fle2/implicit_ecoc_creation.js. This causes the test to run in last-patch-based multiversion suites (e.g. disagg_repl_jscore_passthrough_multiversion) against an older binary that does not yet have the required ECOC clustered index behaviour, producing the following failure tracked by BF-44041:

ECOC collection missing clustered index
failed to load: jstests/fle2/implicit_ecoc_creation.js

The fix is to add jstests/fle2/implicit_ecoc_creation.js to the last-patch section, mirroring the identical entry already present in last-continuous.