Update function coverage documentation (#180)

Co-authored-by: LocalStack Bot <localstack-bot@users.noreply.github.com>

Author: HarshCasper

src/content/docs/snowflake/sql-functions.md

@@ -357,6 +357,7 @@ The content will be updated as additional query features and functions are imple
 |INITCAP|✅|
 |INSERT|✅|
 |INTEGRATION|✅|
+|INTERPOLATE_BFILL, INTERPOLATE_FFILL, INTERPOLATE_LINEAR|❓|
 |INVOKER_ROLE|❓|
 |INVOKER_SHARE|❓|
 |IS [ NOT ] DISTINCT FROM|❓|
@@ -729,6 +730,8 @@ The content will be updated as additional query features and functions are imple
 |SYSTEM$LIST_NAMESPACES_FROM_CATALOG|❓|
 |SYSTEM$LOG, SYSTEM$LOG_<level> (for Snowflake Scripting)|✅|
 |SYSTEM$MIGRATE_SAML_IDP_REGISTRATION|❓|
+|SYSTEM$OPT_IN_INTERNAL_STAGE_NETWORK_ACCESS_LOGS|❓|
+|SYSTEM$OPT_OUT_INTERNAL_STAGE_NETWORK_ACCESS_LOGS|❓|
 |SYSTEM$PIPE_FORCE_RESUME|❓|
 |SYSTEM$PIPE_REBINDING_WITH_NOTIFICATION_CHANNEL|❓|
 |SYSTEM$PIPE_STATUS|❓|