fix(dallas): make recovery time for 1-bit equal to that of 0-bit

[muggenhor]

What does this implement/fix?

Without this detection of DS18B20 sensors attached along a 10 meter wire fails on an ESP32-C3 (Wemos C3 pico). 58 μs also works when on 5V, on 3.3V however it starts to become unpredictable and fail somewhere between 1/3 and 2/3 of the time.

FYI: I've got 6 sensors in total for my setup. Soldered equidistant along a single cable (3 wires) of about 10m long. Tested both by powering from the board's 3V3 pin as well as the 5V pin. In both cases the data line had a single 4.7 kΩ pull-up resistor between the data and positive power line. (I've tried 2.2 kΩ @ 5V too before writing this patch, it didn't make a difference).

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Other

Test Environment

• ESP32
• ESP32 IDF
• ESP8266
• RP2040
• BK72xx
• RTL87xx

Example entry for config.yaml:

esphome:
  name: temperature-sensors

esp32:
  board: lolin_c3_mini
  framework:
    type: arduino

dallas:
  - pin: GPIO6

sensor:
  - platform: dallas
    address: 0xXXXXXXXXXXXXXX28
    name: A
    accuracy_decimals: 2

Checklist:

• The code change is tested and works locally.
• Tests have been added to verify that the new code works (under tests/ folder).

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated in esphome-docs.