fix(rest-api-client): prevent infinite loop when condition contains OR clause

[zaki-yama]

Why

Fixes #716 .

What

Enclose condition parameter of getAllRecords() and getAllRecordsWithId() with parenthesis (()). (See e634fb4)
NOTE: I didn't enclose the conditionit parameter of getAllRecordsWithOffset().

How to test

1. Create a kintone app, insert more than 500 records
2. Call getAllRecords() with condition parameter that meets the following conditions:
   • condition contains or clause (e.g. 'Customer != "foo" or Status in ("Completed")' )
   • the number of filtered records also exceeds 500 records
3. Confirm that all expected records are returned, and the process finishes correctly

You can test it easily using getAllRecords() demo script with modified condition parameter.

Checklist

• Read CONTRIBUTING.md
• Updated documentation if it is required.
• Added tests if it is required. => See 0c810bc
• Passed yarn lint and yarn test on the root directory.

[zaki-yama]

I refactored a little in RecordClient.test (1f765e2).
The actual change is 0c810bc.

[chick-p]

@zaki-yama
Thank you for fixing!

[shisama]

@zaki-yama Thank you for your work. Code looks good to me. However, does this modification occur a breaking change because the result will change by changing the condition?