remove env from matrix

.github/workflows/release.yml

@@ -24,16 +24,16 @@ jobs:
     strategy:
       matrix:
         include:
-          - target: ${{ env.LINUX_AMD64_TARGET }}
+          - target: x86_64-unknown-linux-musl
             os: ubuntu-latest
             rust: stable
-          - target: ${{ env.LINUX_ARM64_TARGET }}
+          - target: aarch64-unknown-linux-musl
             os: ubuntu-latest
             rust: stable
-          - target: ${{ env.MACOS_TARGET }}
+          - target: x86_64-apple-darwin
             os: macos-latest
             rust: stable
-          - target: ${{ env.WINDOWS_TARGET }}
+          - target: x86_64-pc-windows-msvc
             os: windows-latest
             rust: stable