[fix] [Lostfilm Plugin] Update regex according to new feed version

[zankevich]

Motivation for changes:

According to changes of rss feed we need to change regex to set poster id properly.

<?xml version="1.0" encoding="utf-8" ?>
<rss version="0.91">
<channel>
<title>LostFilm.TV</title>
<description>Свежачок от LostFilm.TV</description>
<link>https://www.lostfilm.tv/</link>
<lastBuildDate>Wed, 21 Apr 2021 00:34:19 +0000</lastBuildDate>
<language>ru</language><item>
	<title>Город на холме (City on a Hill). Слишком белые и слишком глупые. (S02E04)</title>
	<description><![CDATA[<img src="//static.lostfilm.win/Images/437/Posters/image.jpg" alt="" /><br />]]></description>
	<pubDate>Wed, 21 Apr 2021 00:34:18 +0000</pubDate>
	<link>https://www.lostfilm.win/mr/series/City_on_a_Hill/season_2/episode_4/</link>
</item></channel>
</rss>

Detailed changes:

• start using more generic regex (https://regex101.com/r/ATz1QL/1)

[GreyKat]

I would go with more universal regex:

LOSTFILM_ID_REGEXP = re.compile(r'.*static.lostfilm.[a-z]{2,}/Images/(\d+)/Posters/.*')

[Spider84]

LOSTFILM_ID_REGEXP = re.compile(r'.*static.lostfilm.[a-z]{2,}/Images/(\d+)/Posters/.*')

'.*static\.lostfilm\.[a-z]{2,}/Images/(\d+)/Posters/.*'

[liiight]

LGTM. Does this work? I can't test this

[Spider84]

LGTM. Does this work? I can't test this
yes

[liiight]

Thanks!