[easy][cicd] Fix testscripts (jetify-com#2545)

## Summary

## How was it tested?

---------

Co-authored-by: John Lago <[email protected]>

Author: 2 people

.github/workflows/cli-tests.yaml

@@ -83,7 +83,12 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: DeterminateSystems/nix-installer-action@main
-      - run: nix build .
+      - name: Build flake
+        run: |
+          if ! nix build .; then
+            echo "::warning::If this fails, you probably have to run 'devbox run update-hash'"
+            exit 1
+          fi
       - run: ./result/bin/devbox version
 
   golangci-lint:

flake.lock

@@ -19,7 +19,7 @@ func Main(m *testing.M) {
 	commands := map[string]func(){
 		"devbox": func() {
 			// Call the devbox CLI directly:
-			boxcli.Execute(context.Background(), os.Args[1:])
+			os.Exit(boxcli.Execute(context.Background(), os.Args[1:]))
 		},
 		"print": func() { // Not 'echo' because we don't expand variables
 			fmt.Println(strings.Join(os.Args[1:], " "))

testscripts/testrunner/testrunner.go

@@ -1 +1 @@
-sha256-nU+3vFjOAYHRbVJiZuI/78jxDbWB5Ghdt05eWQoeWJA=
+sha256-9ZaouEHCuavaRnEVa8cgGrAwyZWXUzyPhcUH02qkfWo=