test: verify vp run build hits cache in package sub dir

Author: fengmk2

packages/cli/snap-tests/command-pack-monorepo/snap.txt

@@ -6,6 +6,10 @@ index.cjs
 ~/packages/hello$ vp pack ◉ cache hit, replaying
 vp run: cache hit, <variable>ms saved.
 
+> cd packages/hello && vp run build 2>&1 | grep 'cache hit' # should hit cache in sub dir
+~/packages/hello$ vp pack ◉ cache hit, replaying
+vp run: cache hit, <variable>ms saved.
+
 > echo 'export function hello() { console.log("changed"); }' > packages/hello/src/hello.ts
 > vp run hello#build 2>&1 | grep 'cache miss' # should miss cache after source change
 ~/packages/hello$ vp pack ○ cache miss: 'packages/hello/src/hello.ts' modified, executing

packages/cli/snap-tests/command-pack-monorepo/steps.json

@@ -6,6 +6,7 @@
     },
     "ls packages/hello/dist # should have the library",
     "vp run hello#build 2>&1 | grep 'cache hit' # should hit cache",
+    "cd packages/hello && vp run build 2>&1 | grep 'cache hit' # should hit cache in sub dir",
     "echo 'export function hello() { console.log(\"changed\"); }' > packages/hello/src/hello.ts",
     "vp run hello#build 2>&1 | grep 'cache miss' # should miss cache after source change",
     {