chore: bump sqlglot (#1586)

Author: eakmanrq

setup.py

@@ -46,7 +46,7 @@
         "requests",
         "rich[jupyter]",
         "ruamel.yaml",
-        "sqlglot~=18.14.0",
+        "sqlglot~=18.15.0",
     ],
     extras_require={
         "bigquery": [