github/workflows: cleanup the arch stuff

- Out with 386 entirely
- Fix kernel names in cross-compilation job

.github/workflows/main.yml

@@ -17,9 +17,9 @@ jobs:
           - "1.22"
           - "1.23"
         goos:
+          - darwin
           - freebsd
-          - macos
-          - ubuntu
+          - linux
           - windows
         goarch:
           - amd64
@@ -49,14 +49,8 @@ jobs:
           - macos
           - ubuntu
           - windows
-        arch:
-          - 386
-          - amd64
-        exclude:
-          - os: macos
-            arch: 386
 
-    name: tests (${{ matrix.os }}/go-${{ matrix.go_version }}-${{ matrix.arch }})
+    name: tests (${{ matrix.os }}/go-${{ matrix.go_version }}
     runs-on: ${{ matrix.os }}-latest
     steps:
       - uses: actions/[email protected]
@@ -67,17 +61,8 @@ jobs:
           go-version: ${{ matrix.go_version }}
 
       - name: run-tests-race
-        if: ${{ matrix.arch == 'amd64' }}
-        env:
-          GOARCH: "${{ matrix.arch }}"
         run: go test -race -vet all -mod readonly ./...
 
-      - name: run-tests
-        if: ${{ matrix.arch == '386' }}
-        env:
-          GOARCH: "${{ matrix.arch }}"
-        run: go test -vet all -mod readonly ./...
-
   lint:
     name: lint
     runs-on: ubuntu-latest