fix(serverless): Check if cloud event callback is a function (#9044) #23414

Job	Run time
Get Metadata	3s
Check PR branches	3s
Install Dependencies	27s
Check file formatting	31s
Build	2m 55s
Circular Dependency Check	57s
Lint	4m 22s
Browser Unit Tests	4m 48s
Node (14) Unit Tests	2m 50s
Node (16) Unit Tests	2m 49s
Node (18) Unit Tests	3m 21s
Node (20) Unit Tests	3m 3s
Node (21) Unit Tests	2m 58s
Bun Unit Tests	33s
Playwright (${{ matrix.bundle }}${{ ((matrix.shard && format(' {0}/{1}', matrix.shard, matrix.shards)) \|\| '') }}) Tests	0s
Deno Unit Tests	0s
Nextjs (Node ${{ matrix.node }}) Tests	0s
Node Profiling Unit Tests	0s
Size Check	1m 19s
Browser Build Tests	37s
Browser (${{ matrix.browser }}) Tests	0s
Check for faulty .d.ts files	28s
Playwright Loader (${{ matrix.bundle }}) Tests	0s
Node (${{ matrix.node }})${{ ((matrix.typescript && format(' (TS {0})', matrix.typescript)) \|\| '') }} Integration Tests	0s
Remix v${{ matrix.remix }} (Node ${{ matrix.node }}) Tests	0s
Compile & Test Profiling Bindings (v${{ matrix.node }}) ${{ matrix.target_platform \|\| matrix.os }}, ${{ matrix.node \|\| matrix.container }}, ${{ matrix.arch \|\| matrix.container }}, ${{ ((contains(matrix.container, 'alpine') && 'musl') \|\| 'glibc') }}	0s
Overhead metrics	0s
Prepare E2E tests	0s
Upload Artifacts	0s
E2E ${{ matrix.label \|\| matrix.test-application }} Test	0s
E2E ${{ matrix.label \|\| matrix.test-application }} Test	0s
All required jobs passed or were skipped	1s
	32m 5s

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