[ci] Increase DevTools test shards and bump timeout (#35459)

[ci] Increase DevTools test shards and bump timeout

- Increase DevTools test shards from 3 to 5
- Bump timeout to 20s

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* #35458
* __->__ #35459

.github/workflows/runtime_build_and_test.yml

@@ -454,9 +454,11 @@ jobs:
       fail-fast: false
       matrix:
         shard:
-          - 1/3
-          - 2/3
-          - 3/3
+          - 1/5
+          - 2/5
+          - 3/5
+          - 4/5
+          - 5/5
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4

packages/react-devtools-shared/src/__tests__/profilerContext-test.js

@@ -654,7 +654,7 @@ describe('ProfilerContext', () => {
     expect(store.profilerStore.isProfilingBasedOnUserInput).toBe(false);
 
     document.body.removeChild(profilerContainer);
-  });
+  }, 20000);
 
   it('should navigate between commits when the keyboard shortcut is pressed', async () => {
     const Parent = () => <Child />;