chore: scheduled Ubuntu 20.04 retirement

Author: rholshausen

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       matrix:
         include:
-          - operating-system: ubuntu-20.04
+          - operating-system: ubuntu-22.04
             targets: x86_64-unknown-linux-gnu,x86_64-unknown-linux-musl,aarch64-unknown-linux-gnu,aarch64-unknown-linux-musl
           - operating-system: windows-2019
             targets: aarch64-pc-windows-msvc,x86_64-pc-windows-msvc