ci: Update ubuntu runner (#190)

Author: SergioGasquez

.github/workflows/cd.yml

@@ -18,12 +18,12 @@ jobs:
         job:
           - os: macos-latest
             target: x86_64-apple-darwin
-          - os: ubuntu-20.04
+          - os: ubuntu-latest
             target: x86_64-unknown-linux-gnu
           - os: windows-latest
             target: x86_64-pc-windows-msvc
             binary-postfix: ".exe"
-          - os: ubuntu-20.04
+          - os: ubuntu-latest
             target: aarch64-unknown-linux-gnu
           - os: macos-latest
             target: aarch64-apple-darwin