ci: fix missing syntest flag

Author: DanStough

.github/workflows/release.yaml

@@ -22,8 +22,11 @@ jobs:
           go-version-file: 'go.mod'
 
       - name: Go Test
+        env:
+          # Remove once this feature is stable in Go
+          GOEXPERIMENT: synctest
         run: |
-          go test -v ./...
+           go test -v ./...
 
   goreleaser:
     needs:

.github/workflows/test.yaml

@@ -22,5 +22,8 @@ jobs:
           go-version-file: 'go.mod'
 
       - name: Go Test
+        env:
+          # Remove once this feature is stable in Go
+          GOEXPERIMENT: synctest
         run: |
           go test -v ./...