fix: skip rtools

Author: rustyconover

.github/workflows/MainDistributionPipeline.yml

@@ -27,4 +27,4 @@ jobs:
       duckdb_version: v1.2.1
       ci_tools_version: main
       extension_name: datasketches
-      exclude_archs: "windows_amd64_rtools"
+      exclude_archs: "windows_amd64_rtools;windows_amd64_mingw"