Try to work around build failures

Signed-off-by: Steffen Jaeckel <s@jaeckel.eu>

Author: sjaeckel

.github/workflows/main.yml

@@ -59,7 +59,12 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: install dependencies
-        run: |
+        uses: nick-fields/retry@v3
+        with:
+          timeout_minutes: 5
+          max_attempts: 3
+          retry_on: error
+        command: |
           sudo apt-get update -qq
           sudo apt-get install -y libgmp-dev valgrind libtool-bin clang-tools lcov ruby clang
           sudo apt-get remove -y libtommath1