fix(ci): check out the repository before doing anything else

Author: vhyrro

.github/workflows/valgrind.yml

@@ -5,10 +5,14 @@ on:
     branches:
       - main
 
+env:
+  CARGO_TERM_COLOR: always
+
 jobs:
-  valgrind:
+  build:
     runs-on: ubuntu-latest
     steps:
+    - uses: actions/checkout@v3
     - name: Install Valgrind and LibC Debug Symbols
       run: |
         sudo apt update