ci: use ubuntu-22.04 for x64 builds

Author: amaanq

.github/workflows/build.yml

@@ -38,7 +38,7 @@ jobs:
           # 2. Add a new record to the matrix map in `cli/npm/install.js`
           - { platform: linux-arm64       , target: aarch64-unknown-linux-gnu   , os: ubuntu-latest    , use-cross: true }
           - { platform: linux-arm         , target: arm-unknown-linux-gnueabi   , os: ubuntu-latest    , use-cross: true }
-          - { platform: linux-x64         , target: x86_64-unknown-linux-gnu    , os: ubuntu-latest    , features: wasm  }
+          - { platform: linux-x64         , target: x86_64-unknown-linux-gnu    , os: ubuntu-22.04     , features: wasm  }
           - { platform: linux-x86         , target: i686-unknown-linux-gnu      , os: ubuntu-latest    , use-cross: true }
           - { platform: linux-powerpc64   , target: powerpc64-unknown-linux-gnu , os: ubuntu-latest    , use-cross: true }
           - { platform: windows-arm64     , target: aarch64-pc-windows-msvc     , os: windows-latest                     }