fix pr newswire title parser

rsshub/spiders/earningsdate/prnewswire.py

@@ -4,7 +4,7 @@ domain = 'https://www.prnewswire.com'
 
 def parse(post):
     item = {}
-    item['title'] = post.css('a::text').extract_first()
+    item['title'] = post.css('a::text').getall()[1]
     item['description'] = post.css('p::text').extract_first()
     item['link'] = f"{domain}{post.css('a::attr(href)').extract_first()}"
     item['pubDate'] = post.css('small::text').extract_first()
@@ -23,4 +23,4 @@ def ctx(category=''):
         'description': 'Earnings Date - Prnewswire',
         'author': 'hillerliao',
         'items': items
-    }
+    }