Error: failed to write data: 500 Internal Server Error: unexpected error writing points to database: [shard 960]

Related to https://github.com/influxdata/influxdb/issues/23212

__Steps to reproduce:__

1. On a populated server (2.0.5) run: influxd inspect export-lp --bucket-id 540a390190697254 --engine-path /ssd/influx/engine --output-path /ssd/influx/backups/export.lp --start 2022-01-01T00:00:00Z --end 2022-01-02T23:59:59Z
2. On another server (2.2) run: influx write --bucket home_assistant --file ~/export.lp

__Expected behavior:__
Data appears in the new server

__Actual behavior:__
Error: failed to write data: 500 Internal Server Error: unexpected error writing points to database: [shard 960] open /home/pi/.influxdbv2/engine/data/514933d6df66d74a/autogen/960/index/1/MANIFEST: too many open files

__Environment info:__

* System info: Linux 5.10.103-v8+ aarch64 GNU/Linux (Bullseye)
* From: InfluxDB version: InfluxDB 2.0.5 (git: https://github.com/influxdata/influxdb/commit/741389781e88ecf1f28ff34aa04aa5cf22d99ae4) build_date: 2021-04-27T17:57:07Z
* To: InfluxDB v2.2.0 (git: a2f8538837) build_date: 2022-04-06T17:36:38Z
* Other relevant environment details: Raspberry Pi3 with fresh OS, updated & upgraded, no other modifications made/programs installed.

Start with the `influxd inspect export-lp` and `influx write` entry points described in the reproduction steps, then reproduce the import on Linux while monitoring open files. Investigate why importing the exported data reaches the shard manifest limit; done means the same export imports successfully without the “too many open files” error.

Written by the indexing model from the issue text.