Use Go 1.21.7.

versions.json

@@ -134,8 +134,8 @@
       "build_path": "client",
       "repo_dir": "snowflake",
       "go": {
-        "version": "go1.19.3",
-        "sha256": "18ac263e39210bcf68d85f4370e97fb1734166995a1f63fb38b4f6e07d90d212"
+        "version": "go1.21.7",
+        "sha256": "00197ab20f33813832bff62fd93cca1c42a08cc689a32a6672ca49591959bff6"
       },
       "ndk": {
         "url": "https://dl.google.com/android/repository/android-ndk-r23c-linux.zip",