Change path for gherkin tests

[NeaguGeorgiana23]

Onc eall the features for the SDK are implemented, tha MODULE.bazel should be updated as follows:

filegroup(
    name = "gherkin_features",
    srcs = glob(["specification/assets/gherkin/*.feature"]),
)
""",
)

This will enable all gherkin tests, not just a specific folder.