Update eifinger/setup-uv action to v6.3.0

Author: nextest-bot

.github/workflows/docs.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Install nextest for help text in docs
         uses: taiki-e/install-action@nextest
       - name: Install uv
-        uses: eifinger/setup-uv@f0ec1fc3b38f5e7cd731bb6ce540c5af426746bb # v6.1.0
+        uses: eifinger/setup-uv@445689ea25e0de0a23313031f5fe577c74ae45a1 # v6.3.0
         with:
           enable-cache: true
       - name: Build rustdoc