docs: fix github pages deployment

The github pages deployment was presumably broken because
the upload-artifact action had a "merge multple" policy
where the rust docs were overwriting the uploaded kotlin and typescript docs.

This renames the rust doc artifact and uploads it first so that it doesn't overwrite
the kotlin and typescript docs anymore.

.github/workflows/docs.yml

@@ -28,7 +28,7 @@ jobs:
 
     - uses: actions/[email protected]
       with:
-        name: rustdoc
+        name: rustdocs
         path: target/doc
         retention-days: 1
         overwrite: true
@@ -117,6 +117,12 @@ jobs:
       - ktdoc
 
     steps:
+    - uses: actions/[email protected]
+      with:
+        pattern: "rustdocs"
+        path: target/doc
+        merge-multiple: true
+
     - uses: actions/[email protected]
       with:
         pattern: "*doc"