fix: increase timeout for build indexing test - #2606

cd js-ceramic
npm install
npm run build
npm run test

Summary of all failing tests
 FAIL src/indexing/__tests__/build-indexing.test.ts (6.255 s)
 ●くろまる build for postgres connection string
 thrown: "Exceeded timeout of 5000 ms for a test.
 Use jest.setTimeout(newTimeout) to increase the timeout value, if this is a long-running test."
 50 | })
 51 |
 > 52 | test('build for postgres connection string', async () => {
 | ^
 53 | const { databaseURL, kill } = await getDatabase()
 54 | const indexingApi = buildIndexing(
 55 | {
 at test (src/indexing/__tests__/build-indexing.test.ts:52:1)