Actually perform checks on alternate trampoline platforms (#8642)

It seems unintentional that we basically did nothing on these
alternative platforms? It seems like an artifact from some previous
change.

I'm not sure it's worth running Clippy multiple times. We could also
just reduce the matrix here.

.github/workflows/ci.yml

@@ -359,12 +359,10 @@ jobs:
 
       - name: "Clippy"
         working-directory: ${{ env.UV_WORKSPACE }}/crates/uv-trampoline
-        if: matrix.target-arch == 'x86_64'
         run: cargo clippy --all-features --locked --target x86_64-pc-windows-msvc --tests -- -D warnings
 
       - name: "Bloat Check"
         working-directory: ${{ env.UV_WORKSPACE }}/crates/uv-trampoline
-        if: matrix.target-arch == 'x86_64'
         run: |
           $output = cargo bloat --release --target x86_64-pc-windows-msvc
           $filteredOutput = $output | Select-String -Pattern 'core::fmt::write|core::fmt::getcount' -NotMatch