Run apt update before apt install

Author: williamdes

.github/workflows/build.yml

@@ -41,8 +41,10 @@ jobs:
             - uses: actions/checkout@v6
               with:
                   submodules: true
-            - name: Install Sphinx
-              run: sudo apt install sphinx-doc python3-sphinx
+            - name: Install Sphinx-doc
+              run: |
+                  sudo apt update
+                  sudo apt install -y sphinx-doc python3-sphinx
             - name: Install gettext
               run: sudo apt-get install -y gettext
             - name: Install git-restore-mtime