Update docs announcement banner to v1.12.1

Signed-off-by: Eric Shi <ershi@nvidia.com>

Author: shi-eric

docs/conf.py

@@ -124,7 +124,7 @@
 
 html_theme = "nvidia_sphinx_theme"
 html_theme_options = {
-    "announcement": "Warp v1.12.0 is now available. See the <a href='https://github.com/NVIDIA/warp/releases/tag/v1.12.0'>release notes</a>.",
+    "announcement": "Warp v1.12.1 is now available. See the <a href='https://github.com/NVIDIA/warp/releases/tag/v1.12.1'>release notes</a>.",
     "secondary_sidebar_items": ["page-toc", "edit-this-page"],
     "article_header_end": ["view-page-source.html"],
     "use_edit_page_button": True,