parser: allow (UTC prefix in TzInfoParser

[priv-kweihmann]

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• [x ] 🧪 Added tests for changed code.
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Description of Changes

allow (UTC prefix in TzInfoParser

Input like '(UTC+01:00) Amsterdam, Berlin...' couldn't be parsed by the code. Allow (UTC prefixes to the string and also ignore suffixes to the strings, as remainders are not relevant to the further computation. This particular input was the TZ string send by a remote mail server

[codecov[bot]]

Codecov Report

Merging #1099 (8389fdc) into master (4eb070f) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##            master     #1099   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           10        10           
  Lines         2325      2325           
  Branches       449       449           
=========================================
  Hits          2325      2325           

Impacted Files	Coverage Δ
arrow/parser.py	100.00% <ø> (ø)

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[priv-kweihmann]

@anishnya @jadchaar @krisfremen any feedback on this PR?

[anishnya]

Hey @priv-kweihmann, sorry for the delay in looking at this. The changes look good to me and I've approved the PR. Just awaiting confirmation from one @jadchaar, @krisfremen, or @systemcatch here.