ci: fix tooling install command

Author: philipr-za

.github/workflows/rust.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Setup
         run: |
           rustc --version
-          apt-get update && apt-get install -y valgrind
+          sudo apt-get update && apt-get install -y valgrind
           cargo install cargo-valgrind
           
       - name: Run tests