chore: remove explicit cgo disablement

Signed-off-by: Dave Henderson <[email protected]>

.github/workflows/ci.yml

@@ -37,7 +37,6 @@ jobs:
     - name: Test
       run: make test
       env:
-        CGO_ENABLED: '0'
         GOARCH: ${{ matrix.goarch }}
         COVERALLS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         COVERAGE_VERSION: '1.19'

Makefile

@@ -36,8 +36,11 @@ test-deps:
 race_goarches := 'amd64' 'arm64'
 ifeq (,$(findstring '$(GOARCH)',$(race_goarches)))
 TEST_ARGS=
+export CGO_ENABLED=0
 else
 TEST_ARGS=-race
+# the race detector needs cgo (at least on Linux and Windows, and macOS until Go 1.20)
+export CGO_ENABLED=1
 endif
 
 .PHONY: test