Fix API call in yrno() function

[jackdeye]

Updated how jsonparser parses the degree and condition from the API call. This is fixing the issue brought up in #457.

[erikw]

Thank you so much!

Just fix the linter suggestions. I copied and pasted the relevant log lines for you here:

In /github/workspace/segments/weather.sh line 100:
degree=$(echo "$weather_data" | $jsonparser -r .properties.timeseries | .[0].data.instant.details.air_temperature)
^-- SC2211 (warning): This is a glob used as a command name. Was it supposed to be in ${..}, array, or is it missing quoting?

In /github/workspace/segments/weather.sh line 101:
condition=$(echo "$weather_data" | $jsonparser -r .properties.timeseries | .[0].data.next_1_hours.summary.symbol_code)
^-- SC2211 (warning): This is a glob used as a command name. Was it supposed to be in ${..}, array, or is it missing quoting?

For more information:
https://www.shellcheck.net/wiki/SC2211 -- This is a glob used as a command ...