MOD-14368 Add speedb_git_sha field to module metadata

Add speedb_git_sha to the FIELDS allowlist and to the default metadata,
so that RediSearch Enterprise can include the SpeedB commit SHA in the
RAMP package without post-processing the zip.

Author: ofiryanai

RAMP/module_metadata.py

@@ -67,6 +67,7 @@
     "ramp_format_version",
     "semantic_version",
     "sha256",
+    "speedb_git_sha",
     "version",
     "crdb",
     "redis_args",
@@ -131,6 +132,7 @@ def create_default_metadata(module_path):
         "compatible_redis_version": COMPATIBLE_REDIS_VERSION,
         "bigstore_version_2_support": BIGSTORE_VERSION_2_SUPPORT,
         "sha256": sha256_checksum(module_path),
+        "speedb_git_sha": "",
         "commands": MODULE_COMMANDS,
         "ramp_format_version": RAMP_FORMAT_VERSION,
         "config_command": CONFIG_COMMAND,